<PAGE>

                                                                    EXHIBIT 10.2

                            2006 EMPLOYMENT AGREEMENT

                        Columbia Bancorp - Greg B. Spear

      This Employment Agreement (the "Agreement") is made and entered into this
15th day of April, 2006 by and between Columbia Bancorp, an Oregon corporation
and bank holding company ("Bancorp") and Greg B. Spear ("Employee").

                                    RECITALS

      (1) Bancorp is an Oregon corporation and is the holding company of
Columbia River Bank, a state-chartered Oregon financial institution. Bancorp's
principal office is at 401 East Third Street, Suite 200, The Dalles, Oregon
97058.

      (2) Bancorp desires to employ Employee as an officer of Bancorp and of its
subsidiary Columbia River Bank (the "Bank") on the terms and conditions set
forth herein.

      Now, therefore, it is agreed:

      1.    RELATIONSHIP AND DUTIES.

      1.1   EMPLOYMENT AND TITLE. Bancorp shall employ Employee as an officer of
            Bancorp with the title of Executive Vice President and Chief
            Financial Officer of Columbia Bancorp and Chief Financial Officer of
            Columbia River Bank. Subject to the terms and conditions hereof,
            employee shall perform such duties and exercise such authority as
            are customarily performed and exercised by persons holding such
            office, subject to the general direction of the Boards of Directors
            of Bancorp and the Bank and of the President and Chief Executive
            Officer of Bancorp and the Bank. Such services and duties shall be
            exercised in good faith and in accordance with standards of
            reasonable business judgment. As used herein, references to
            "Bancorp" shall be deemed to also refer to and include the Bank
            where the context requires.

      1.2   DUTIES; CONFLICTS. Employee shall devote his full time, attention
and efforts to the diligent performance of his duties as an officer of Bancorp.
Employee will not accept employment with any other individual, corporation,
partnership, governmental authority or any other entity, or engage in any other
venture for profit which Bancorp, or any subsidiary, parent, sister or
affiliated corporation of Bancorp, considers to be in conflict with their best
interests or to be in competition with their business, or which may interfere in
any way with Employee's performance of his duties hereunder.

      1.3   SERVICE ON OTHER COMPANY BOARDS. Nothing in the Agreement shall
prohibit Employee from serving on the board of directors of any profit or
non-profit

          Page 1 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

corporation not in direct competition with Bancorp or with any subsidiary,
parent, sister or affiliated corporation of Bancorp. In addition, Employee may
own stock in any other corporation whether or not the stock is publicly traded;
provided, that if such corporation operates a business in competition with
Bancorp Employee may not own more than five percent (5%) of the outstanding
shares of such corporation.

      2. TERM OF EMPLOYMENT.

      2.1 TWO-YEAR TERM. The term of employment under the Agreement shall begin
on April 15, 2006 and end on April 14, 2008.

      3. TERMINATION.

      3.1 DEFINITION. As used in the Agreement, "termination" shall mean the
termination of Employee's employment relation with Bancorp, whether initiated by
Bancorp or by Employee, and whether for cause or without cause.

      3.2 TERMINATION EVENTS. Notwithstanding any other provisions of the
Agreement, the employment of Employee shall terminate immediately on the earlier
to occur of any of the following:

            3.2.1 Employee's death;

            3.2.2 Employee's complete disability. "Complete disability" as used
herein shall mean the inability of Employee, due to illness, accident, or other
physical or mental incapacity, to perform the services required under the
Agreement for an aggregate of ninety (90) days within any period of 180
consecutive days during the term hereof; provided, however, that disability
shall not constitute a basis for discharge for cause;

            3.2.3 The discharge of Employee by Bancorp for cause. "Cause" as
used herein shall mean (i) Employee's gross negligence or willful misconduct as
shall constitute, as a matter of law, a breach of the covenants and obligations
of Employee hereunder; (ii) failure or refusal of Employee to comply with the
provisions of the Agreement; (iii) Employee's conviction by any duly constituted
court with competent jurisdiction of a crime (other than traffic offenses); (iv)
Employee's malfeasance or incompetence, provided that in applying this criteria
Bancorp shall not be unreasonable or arbitrary, and provided further that prior
to effecting a dismissal under this Section (iv) Bancorp shall afford Employee
with fair and reasonable warning and with a fair and reasonable opportunity to
cure any defects in Employee's performance.

      3.3 TERMINATION BY EMPLOYEE. Employee may terminate his employment with
Bancorp with or without cause by giving thirty (30) days written notice of
termination. "Cause" as used herein shall include Bancorp's failure or refusal
to comply with the provisions of the Agreement.

          Page 2 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

      3.4 EFFECT OF TERMINATION. The termination of Employee's employment shall
constitute a tender by Employee of his resignation as an officer of Bancorp, and
as a member of any board of directors or board committees of Bancorp or its
affiliates if Employee is a member thereof at the time of termination.

      3.5 PAYMENT ON TERMINATION. If Employee's employment is terminated by
Employee with or without cause, or by Bancorp with or without cause, Employee
shall be paid all base salary and benefits accrued under the Agreement as of the
termination date.

      3.6 SEVERANCE PAYMENT. If Employee's employment is terminated by Employee
with cause, or by Bank without cause, Employee shall be paid all base salary and
benefits accrued under the Agreement as of the termination date, and in
addition, shall be entitled to a severance payment equal to the lesser of (i)
four month's base salary as of the date of termination multiplied by the number
of full calendar years Employee has been employed by Bank or any predecessor
thereof, or (ii) one month's base salary as of the date of termination
multiplied by twenty-four (24). For purposes of Section 3.6(i) a period of
continuous full-time employment for six months or more in a calendar year shall
count as a full calendar year. If for any period Employee has been employed
simultaneously by Bank and by one or more of its affiliates, such period shall
count only once in determining the severance payment under Section 3.6(i). The
severance payment provided herein shall be paid in full within thirty (30) days
of the date of Employee's termination. Employee shall not be entitled to such
severance payment if Employee's employment is terminated by Bank with cause, or
by Employee without cause, and in either such case, Employee shall only be
entitled to receive on termination a payment equal to Employee's base salary and
benefits accrued under the Agreement as of the termination date, and no other
payments.

      3.7 PERFORMANCE BONUS. If Employee's employment is terminated by Employee
with cause, or by Bancorp without cause, Employee shall be paid, in addition to
the amounts payable under Sections 3.5 and 3.6 of the Agreement: (i) all
non-forfeitable deferred compensation, if any; and (ii) unpaid performance bonus
payments, if any, payable under Section 4.2 of the Agreement, which shall be
declared earned and payable based upon performance up to, and shall be pro-rated
as of, the date of termination. Employee shall not be entitled to such unpaid
performance bonus payments if Employee's employment is terminated by Bancorp
with cause, or by Employee without cause.

      4. COMPENSATION.

      4.1 BASE SALARY. For the period beginning April 15, 2006 and ending April
14, 2007, Employee shall be paid an annual base salary of $140,000.00, payable
in equal bimonthly installments and subject to any deductions required by law.
Base salary for the remainder of 2007 shall be determined by Bancorp prior to
April 14, 2007. The base salary will increased effective August 1, 2006 through
April 14, 2007 to an annualized rate of $160,000 payable as shown above.

          Page 3 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

      4.2 PERFORMANCE BONUS. Employee shall be entitled to consideration for
annual performance bonus compensation for each calendar year constituting a
percentage of annual base salary earned from his employment by Bancorp during
such calendar year. Bonus compensation shall be subject to any deductions
required by law. The Bancorp Board shall timely, and at least once yearly,
determine the amount of and the formulas and methods for establishing such bonus
compensation. The amount of such bonus compensation shall at all times be
discretionary, and Bancorp may decline to award a performance bonus to Employee
in any year.

            4.2.1 Employee shall be entitled to a pro-rata performance bonus for
less than a full year of performance if Employee's employment is terminated by
Employee with cause, or by Bancorp without cause (including termination
following a change of control as described in Section 7.4 of the Agreement),
prior to the date on which Employee would otherwise be entitled to consideration
for Employee's annual performance bonus. In such circumstances, such pro-rata
performance bonus shall be declared earned and payable as of the date of
termination.

      5. BENEFITS; PURCHASE OF SHARES.

      5.1 ELIGIBILITY FOR GENERAL BENEFITS. Employee shall be eligible to
participate in any plan of Bancorp or its affiliates relating to stock options,
stock purchases, profit sharing, group life insurance, medical coverage,
education and other retirement or employee benefits that Bancorp or its
affiliates may adopt for the benefit of employees.

      5.2 CAR ALLOWANCE. Employee shall receive no car allowance.

      5.3 ADDITIONAL BENEFITS. Employee shall be eligible to participate in any
other benefits which may be or become applicable to Bancorp's executive
employees of similar rank. In addition, Employee shall be entitled to: (i) a
reasonable expense account for use in connection with Bancorp business; and (ii)
any other benefits which in Bancorp's judgment are commensurate with the
responsibilities and functions to be performed by Employee under the Agreement,
including the payment of reasonable expenses for attendance by Employee and
Employee's spouse at annual meetings of the Oregon Bankers Association.

      5.4 SHARE OWNERSHIP. During the term of the Agreement, including
extensions, Employee shall purchase shares of Bancorp Stock, including purchases
through the exercise of stock options, in accordance with the share ownership
policies and requirements established by Bancorp management in effect from time
to time for employees of comparable rank.

      6. VACATIONS AND LEAVES.

          Page 4 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

      6.1 PAID VACATION. During the term of the Agreement, Employee shall be
entitled to annual paid vacation benefits identical to those offered to
employees of Bancorp holding executive vice president or higher positions. The
timing of vacations shall be scheduled in a reasonable manner by Employee.
Employee shall not be entitled to receive any additional compensation from
Bancorp on account of his failure to take a vacation, and may not accumulate
unused vacation time from one calendar year to the next.

      6.2 LEAVES WITH OR WITHOUT PAY. The Bancorp Board may grant Employee a
leave or leaves of absence, with or without pay, at such time or times and upon
such terms and conditions as the Board may determine.

      6.3 MANDATORY ABSENCE. In each calendar year Employee shall be absent from
Bancorp for one period of two consecutive weeks. Such period may include
vacation, leave, sick leave, attendance at seminars or conventions, or any
combination thereof.

      7. CHANGE OF CONTROL.

      7.1 SURVIVAL OF RIGHTS. Employee's rights on termination of employment
under Section 3 of the Agreement, as well as all other rights of Employee under
the Agreement or applicable law, shall survive a change of control of Bancorp or
Bank whether or not Employee opposed or favored the change of control.

      7.2 RIGHTS ON CHANGE OF CONTROL. If a change of control of Bancorp or Bank
occurs while the Agreement is in effect, Employee shall have ninety (90) days
following the date such change of control becomes effective to elect to
terminate Employee's employment with cause. If Employee so elects to terminate,
such termination shall constitute a termination by Employee with cause, and
Employee shall receive all payments and benefits due to Employee on termination
by Employee with cause under Section 3 of the Agreement. Notwithstanding the
foregoing, if following such change of control Employee is offered a position of
employment either substantially equivalent to Employee's compensation and
position prior to the change of control, or an executive officer position with
significant responsibility and compensation commensurate (and substantially
equivalent to his previous compensation) with such responsibility, and Employee
elects nevertheless to termination Employee's employment under this Section 7.2.
Employment shall be entitled to a maximum severance payment under Section 3.6
equal to one month's base salary as of the date of termination multiplied by
nine (9).

      7.3 BASE COMPENSATION. Following a change of control, Bancorp shall not
reduce Employee's base compensation in effect prior to the effective date of the
change of control for a period of time equal to the greater of (i) twenty four
(24) months from the effective date of the change of control; (ii) one (1) month
for each full calendar year Employee has been employed by Bancorp; or (iii) the
remaining term of the Agreement, including any extensions thereof. For purposes
of this Subsection 7.3, a period of

          Page 5 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

continuous full-time employment for six months or more in a calendar year shall
count as a full calendar year.

      7.4 TERMINATION WITHOUT CAUSE. If following a change of control Bancorp
terminates Employee's employment within two (2) years of the effective date of
the change of control because of a reduction in force or for any other reason,
other than for cause pursuant to Section 3.3 of the Agreement, such termination
shall constitute a termination by Bancorp without cause, and Employee shall
receive all payments and benefits due to Employee on termination under Sections
3.5 and 3.6 of the Agreement, plus: (i) all non-forfeitable deferred
compensation, if any; and (ii) unpaid performance bonus payments, if any,
payable under Section 4.2 of the Agreement, which shall be declared earned and
payable based upon performance up to, and shall be pro-rated as of, the date of
termination.

      7.5 OPTIONS AND STOCK. If Employee is a participant in a restricted stock
plan or share option plan, and such plan is terminated involuntarily as a result
of the change of control, all stock and options shall be declared fully vested
and shall be paid, awarded or otherwise distributed. With respect to any
unexercised options under any stock option plan, such options may be exercised
within the period provided in such plan. Effective as of the date of the change
of control, any holding period established for stock paid as bonus or other
compensation shall be deemed terminated, except as otherwise provided by law.

      7.6 RELOCATION If relocation is required by the acquiring institution the
relocation package option will be at the choice of the employee. She/he may pick
Columbia's relocation package at the time of the merger or the package offered
by the acquiring company. This option is available for one year from the merger
date.

      7.7 DEFINITION. As used in this Section, "control" shall mean the
acquisition during Employee's employment of twenty-five percent (25%) or more of
the voting securities of Bancorp or Bank by any person, or persons acting as a
group within the meaning of Section 13(d) of the Securities Exchange Act of
1934, or to such acquisition of a percentage between ten percent (10%) and
twenty-five percent (25%) if the Board or the Comptroller of the Currency, the
FDIC, or the Federal Reserve Bank have made a determination that such
acquisition constitutes or will constitute control of Bancorp or Bank. The term
"person" refers to an individual, corporation, bank, bank holding company, or
other entity, but excludes any Employee Stock Ownership Plan established for the
benefit of employees of Bancorp or any of its subsidiaries or other affiliates.

      8. POST TERMINATION COVENANTS.

      8.1 NON-COMPETE COVENANTS. If Employee terminates his employment without
cause, or if Employee's employment is terminated by Bancorp for cause, then for
one year from the date of such termination Employee will not, without the prior
written consent of Bancorp:

          Page 6 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

            8.1.1 Undertake full or part-time work, either as an employee or as
a consultant, for another financial institution if such work is to be done, in
whole or in part, in or from an office or other work site in Yamhill, Wasco,
Hood River, Jefferson, Deschutes, Sherman or Gilliam Counties, Oregon, in
Klickitat County, Washington, or in any other county in Oregon or Washington in
which Bancorp or any of its affiliates has a place of business at the time of
termination; or

            8.1.2 Hire for any financial institution or other employer
(including himself) any employee of Bancorp or any of its affiliates, or
directly or indirectly cause such an employee to leave his or her employment to
work for another employer, if such employee is to work in or from an office or
other work site in Yamhill, Wasco, Hood River, Jefferson, Deschutes, Sherman or
Gilliam Counties, Oregon, in Klickitat County, Washington, or in any other
county in Oregon or Washington in which Bancorp or any of its affiliates has a
place of business at the time of termination.

      8.2 LIQUIDATED DAMAGES FOR BREACH OF NON-COMPETE COVENANTS; OTHER
REMEDIES. If Employee breaches the covenants of Section 8.1, Employee shall be
liable to Bancorp for liquidated damages equal to the lesser of (i) $18,000, or
(ii) $1,500 multiplied by the number of months (including fractions thereof)
between the date of breach and one year from the date of Employee's termination
of employment. For example, if the date of breach occurs six months after the
date of Employee's termination, liquidated damages shall be $9,000 (6 x $1,500).
The parties agree that Bancorp's actual money damages upon Employee's breach
will be difficult to compute, and further agree that the liquidated damages
formula provided herein reasonably represents Bancorp's actual money damages.
Employee shall pay the liquidated damages required hereunder within ten (10)
days of the date Bancorp makes written demand for such payment. Nothing herein
shall preclude Bancorp from enforcing any other legal or equitable remedies it
may have upon Employee's breach, including injunctive relief. Such other
remedies may be enforced in addition to Bancorp's right to liquidated damages
under this Section.

      8.3 LIMITATION. The covenants in Sections 8.1 and 8.2 do not apply if
Employee terminates his employment for cause, if Employee terminates his
employment for any reason within ninety (90) days after the effective date of a
change of control within the meaning of Section 7 of the Agreement, or if
Employee's employment is terminated by Bancorp without cause.

      8.4 ADDITIONAL COVENANTS. The following provisions shall apply and be
binding on Employee following Employee's termination of employment under all
circumstances, whether termination occurred with cause, without cause, following
illness or disability, because of a change of control, or for any other reason:

            8.4.1 Employee shall fully cooperate in the defense or prosecution
of any litigation arising from or relating to matters about which Employee has
knowledge based on his employment or other work, paid or unpaid, for Bancorp and
its affiliates. To

          Page 7 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

the extent allowed by law Employee shall receive reasonable compensation in
connection with his performance under this Section 8.4.1;

            8.4.2 Employee shall at all times keep all confidential and
proprietary information gained from his employment by Bancorp, or from other
previous, present or subsequent paid or unpaid work for Bancorp and its
affiliates, in strictest confidence, and will not disclose or otherwise
disseminate such information to anyone, other than to employees of Bancorp or
its affiliates, except as may be required by law, regulation or subpoena; and

            8.4.3 Employee shall not take or use for any purpose confidential or
proprietary information of Bancorp or its affiliates, including without
limitation customer or potential customer lists and trade secrets.

      8.5 ADVANCEMENT OF EMPLOYEE. Employee acknowledges and agrees that the
Agreement constitutes a bona fide advancement of Employee with the Employer
under ORS 653.295 in several respects, including without limitation an increase
in base salary and benefits.

      9. MISCELLANEOUS.

      9.1 RECITALS; LAW; AMENDMENTS. Each and every portion of the Agreement is
contractual and not a mere recital, and all recitals shall be deemed
incorporated into the Agreement. The Agreement shall be governed by and
interpreted according to Oregon law and any applicable federal law. The
Agreement may not be amended except by a subsequent written agreement signed by
all parties hereto.

      9.2 ENTIRE AGREEMENT. The Agreement contains the entire understanding and
agreement of the parties with respect to the parties' relationship, and all
prior negotiations, discussions or understandings, oral or written, are hereby
integrated herein. No prior negotiations, discussions or agreements not
contained herein or in such documents shall be binding or enforceable against
the parties.

      9.3 COUNTERPARTS. The Agreement may be signed in several counterparts. The
signature of one party on any counterpart shall bind such party just as if all
parties had signed that counterpart. Each counterpart shall be considered an
original. All counterparts of the Agreement shall together constitute one
original document.

      9.4 SUCCESSORS AND ASSIGNS. All rights and duties of Bancorp under the
Agreement shall be binding on and inure to the benefit of Bancorp's successors
and assigns, including any person or entity which acquires a controlling
interest in Bancorp and any person or entity which acquires all or substantially
all of Bancorp's assets. Bancorp and any such successor or assign shall be and
remain jointly and severally liable to Employee under the Agreement. Employee
may not assign or transfer Employee's rights or interests in or under the
Agreement other than by a will or by the laws of

          Page 8 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)

<PAGE>

descent and distribution. The Agreement shall inure to the benefit of and be
enforceable by Employee's estate or legal representative.

      9.5 WAIVER. Any waiver by any party hereto of any provision of the
Agreement, or of any breach thereof, shall not constitute a waiver of any other
provision or of any other breach. If any provision, paragraph or subparagraph
herein shall be deemed invalid, illegal or unenforceable in any respect, the
validity and enforceability of the remaining provisions, paragraphs and
subparagraphs shall not be affected.

      9.6 ARBITRATION. Any dispute, controversy, claim or difference concerning
or arising from the Agreement or the rights or performance of either party under
the Agreement, including disputes about the interpretation or construction of
the Agreement, shall be settled through binding arbitration in the State of
Oregon and in accordance with the rules of the American Arbitration Association.
A judgment upon the award rendered in such arbitration may be entered in any
court of competent jurisdiction.

      9.7 EMPLOYEE HANDBOOK. Employee agrees to be bound by the terms and
conditions of any employee handbook of Bancorp or its affiliates as may be in
effect from time to time, except that in the event of a conflict between such
employee handbook and the Agreement, the Agreement shall control.

      9.8 CAPTIONS. All captions, titles and headings in the Agreement are for
convenience only, and shall not be construed to limit any term of the Agreement.

      9.9 DEFINITION. When used herein in reference to a corporation,
"affiliate" shall mean, without limitation, any parent or subsidiary of the
corporation and any entity controlled by the corporation.

      9.10 EXCEPTIONS. The Bancorp Board or the management of Bancorp may, in
its discretion, make exceptions to one or more of the conditions contained in
the Agreement, provided that any such exceptions must be approved in writing.

      9.11 PRIOR CONTRACTS. The Agreement replaces and supersedes all prior
written employment agreements and amendments thereof between the parties.

/s/ Greg B. Spear
-----------------------------------------
Employee

Date: August 1, 2006

COLUMBIA BANCORP

By: /s/ Roger L. Christensen
    -------------------------------------
Title: Chief Executive Officer

          Page 9 - 2006 EMPLOYMENT AGREEMENT (Columbia Bancorp - Spear)