# Texas State Highway 146

State Highway 146 (SH 146) is a north–south highway in southeastern Texas beginning at I-45 near La Marque and Texas City. It then crosses over the Fred Hartman Bridge over the Houston Ship Channel which carries SH 146 traffic. It then continues north towards Dayton, where it meets US 90 and then heads north and terminates in Livingston at US 59 (Future I-69).

## History

SH 146 was designated on March 19, 1930, from SH 6/US 75 northward to Texas City as a renumbering of SH 6A. On July 2, 1932, SH 146 was extended north to Dayton. On August 3, 1932, SH 146 was extended north to Cleveland (the plan was to delete SH 132 when this extension was completed). On September 22, 1932, this extension was canceled, and SH 146 was instead extended north to Livingston, replacing SH 132. On December 16, 1967, SH 146 was relocated east of Liberty. On February 21, 1984, SH 146 was extended south from SH 3 to I-45. On March 28, 1996, SH 146 was relocated in Baytown replacing Loop 201. The old route of SH 146 was redesignated as Business State Highway 146-E.
Spur 201 was designated on December 17, 1941, from SH 146 in Black Duck Bay to Main Street. On September 23, 1959, Spur 201 was redesignated as Loop 201 and was extended to SH 146 at McKinney Road. On October 22, 1976, Loop 201 was extended to SH 146 at Ferry Road. On March 28, 1996, Loop 201 was redesignated as part of SH 146.

## Route description

SH 146 begins at its southern terminus at Interstate 45 in Bayou Vista, running concurrent with Loop 197 for about 0.5 miles (0.80 km). It then heads northwest and interchanging with SH 3. It then passes by Moses Lake and runs by Trinity Bay. Between Bayview and Kemah, it intersects SH 96. The route then interchanges SH 225 before crossing at the Fred Hartman Bridge over the Houston Ship Channel; from 1953 to 1995, SH 146 crossed under the Houston Ship Channel via the Baytown Tunnel. In Baytown, the highway forms one of its business routes and then interchanges SH 330 before looping east. It then interchanges I-10 before entering Mont Belvieu. After heading north and entering Dayton, SH 146 meets US 90 and runs concurrent with it until reaching Liberty, intersecting SH 321 and Loop 227. It also crosses over the Trinity River before entering Liberty. After separating from US 90, the route heads north, then northeast after intersecting Loop 227, passing by the Trinity River National Wildlife Refuge and then passing through Hardin. It intersects SH 105 in Moss Hill as it proceeds north. The route then passes through Rye and by Ace before reaching Livingston. It intersects US 190 before reaching its northern terminus at US 59 (future Interstate 69 corridor).

## Business routes

SH 146 has two business routes.

### La Porte Business Spur

Business State Highway 146-D (formerly Loop 410) is a business loop that runs from SH 146 in La Porte to Spur 501. The highway was designated on December 1, 1971 as Loop 410 from SH 146 east, north, and west to SH 146, and was marked as a business route of SH 146. On July 28, 1977, the section from SH 146 via Fairmont Parkway to Spur 501 was cancelled, and Loop 410 was rerouted replacing part of Spur 501 and all of Spur 498. Loop 410 was redesignated as Business State Highway 146-D on June 21, 1990. On March 26, 2009, the section from Spur 501 via Broadway Street north to Main Street and west via Main Street to SH 146 was given to the city of La Porte.

### Baytown Business Loop

Business State Highway 146-E is a business loop that runs from SH 146 through Baytown to SH 146. On March 28, 1996, SH 146 was relocated in Baytown replacing Loop 201, and the old route of SH 146 was redesignated as Business State Highway 146-E.

## Junction list

| County | Location | mi | km | Destinations | Notes |
| Galveston | Bayou Vista | 0.0 | 0.0 | I-45 / SH 6 – Houston, Galveston, Hitchcock | I-45 exit 7 southbound, 7A northbound; south end of SH 3 overlap. |
| Galveston | Texas City | 0.1 | 0.16 | Spur 197 north (Texas City Port Boulevard) | Former southern terminus of Loop 197 |
| Galveston | Texas City | 0.7 | 1.1 | SH 3 north – La Marque | Interchange; north end of SH 3 overlap |
| Galveston | Texas City | 1.9 | 3.1 | FM 519 – Hitchcock, Texas City | |
| Galveston | Texas City | 3.4 | 5.5 | FM 1765 – La Marque, Texas City | |
| Galveston | Texas City | 4.3 | 6.9 | FM 1764 – Texas City | South end of freeway; access to HCA Houston Healthcare Mainland |
| Galveston | Texas City | 5.2 | 8.4 | 25th Avenue | North end of freeway; former northern terminus of Loop 197 |
| Galveston | Texas City | 10.1 | 16.3 | FM 517 – Dickinson, San Leon | |
| Galveston | Texas City | 12.2 | 19.6 | FM 646 – Dickinson, Bacliff | Future south end of SH 99 overlap |
| Galveston | Kemah | 14.4 | 23.2 | SH 96 west – League City | |
| Galveston | Kemah | 14.7 | 23.7 | FM 518 west / FM 2094 west | Interchange; south end of freeway |
| Galveston–Harris county line | Kemah–Seabrook line | | | Bridge over Clear Lake | Bridge over Clear Lake |
| Harris | Seabrook | 16.6 | 26.7 | NASA 1 – Seabrook, Johnson Space Center | Access to Houston Methodist Clear Lake Hospital |
| Harris | Seabrook | 18.1 | 29.1 | Red Bluff Road | |
| Harris | ​ | 19.6 | 31.5 | Port Road – Port of Houston Bayport Terminal | No northbound exit (closed until February 2025), access is via U-turn at Shoreacres Boulevard |
| Harris | ​ | 20.7 | 33.3 | Shoreacres Boulevard, Choate Road | |
| Harris | La Porte | 21.7 | 34.9 | McCabe Road | No northbound entrance |
| Harris | La Porte | 21.8 | 35.1 | Bus. SH 146 (Wharton Weems Boulevard) | Former southern terminus of unsigned Loop 410 |
| Harris | La Porte | 23.0 | 37.0 | Fairmont Parkway | |
| Harris | La Porte | 23.9 | 38.5 | Bus. SH 146 (West Main Street) / Spencer Highway | Former northern terminus of unsigned Loop 410 |
| Harris | La Porte | 24.8 | 39.9 | Barbours Cut Boulevard | Southbound exit and northbound entrance |
| Harris | La Porte | 25.5 | 41.0 | SH 225 west – Pasadena, Houston | |
| Harris | La Porte–Baytown line | | | Fred Hartman Bridge over Houston Ship Channel | Fred Hartman Bridge over Houston Ship Channel |
| Harris | Baytown | 28.2 | 45.4 | SH 99 Toll north (Grand Parkway) to Bus. SH 146 / Wyoming Street | Northbound exit and southbound entrance; future north end of SH 99 overlap; former southern terminus point of Loop 201 |
| Harris | Baytown | 28.4 | 45.7 | Missouri Street | |
| Harris | Baytown | 29.3 | 47.2 | West Main Street | Signed at Missouri Street northbound |
| Harris | Baytown | 30.0 | 48.3 | West Texas Avenue, Decker Drive, J. B. LeFevre Drive | |
| Harris | Baytown | 30.8 | 49.6 | Spur 330 west to I-10 | |
| Harris | Baytown | 31.1 | 50.1 | Garth Road, Decker Drive | |
| Harris | Baytown | 31.8 | 51.2 | North Main Street | |
| Harris | Baytown | 33.5 | 53.9 | Bus. SH 146 (Alexander Drive) | Interchange; north end of freeway; former northern terminus point of Loop 201 |
| Chambers | Baytown | 36.0 | 57.9 | FM 565 east | |
| Chambers | Baytown | 36.4 | 58.6 | FM 1405 south / Twisted Oak Street | |
| Chambers | Mont Belvieu | 39.5 | 63.6 | I-10 | I-10 exit 797 |
| Chambers | Mont Belvieu | 40.6 | 65.3 | Loop 207 north | |
| Chambers | Mont Belvieu | 41.4 | 66.6 | FM 565 east | |
| Chambers | Mont Belvieu | 42.0 | 67.6 | Loop 207 south | |
| Chambers | Mont Belvieu | 42.1 | 67.8 | FM 1942 west to FM 2100 | |
| Chambers | Mont Belvieu | 42.9 | 69.0 | SH 99 Toll (Grand Parkway) | |
| Chambers | Mont Belvieu | 43.4 | 69.8 | FM 3360 south | |
| Liberty | ​ | 48.7 | 78.4 | FM 1413 west to US 90 | |
| Liberty | Dayton | 55.0 | 88.5 | US 90 west – Houston | South end of US 90 overlap |
| Liberty | Dayton | 55.3 | 89.0 | SH 321 north (South Cleveland Street) to FM 1960 – Cleveland | |
| Liberty | Dayton | 55.6 | 89.5 | FM 1409 south | |
| Liberty | Liberty | 61.1 | 98.3 | Loop 227 north / FM 2684 south | |
| Liberty | Liberty | 61.9 | 99.6 | FM 563 south – Anahuac | |
| Liberty | Liberty | 62.6 | 100.7 | US 90 east – Beaumont | North end of US 90 overlap |
| Liberty | Liberty | 64.1 | 103.2 | Loop 227 south – Business District | |
| Liberty | Liberty | 65.3 | 105.1 | FM 1011 north | |
| Liberty | ​ | 67.4 | 108.5 | FM 2830 south – Ames | |
| Liberty | Hardin | 70.3 | 113.1 | FM 834 – Daisetta | |
| Liberty | Moss Hill | 76.6 | 123.3 | SH 105 – Cleveland, Batson | Former FM 162 |
| Liberty | Rye | 90.1 | 145.0 | FM 787 – Romayor, Saratoga | Former alignment of SH 105 |
| Polk | ​ | 98.5 | 158.5 | FM 2610 south – Romayor | |
| Polk | ​ | 100.7 | 162.1 | FM 943 east – Segno, Dallardsville | |
| Polk | ​ | 102.1 | 164.3 | FM 2665 west – Goodrich | |
| Polk | ​ | 107.3 | 172.7 | FM 1988 south – Goodrich | |
| Polk | Livingston | 111.7 | 179.8 | US 190 (East Church Street) | Access to CHI St. Luke's Health Livingston Memorial Hospital |
| Polk | Livingston | 113.3 | 182.3 | Future I-69 / US 59 / Bus. US 59-J south | Northern terminus; US 59 is the future Interstate 69 |
| 1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus Incomplete access Tolled ||||||