# List of bridges documented by the Historic American Engineering Record in Colorado

This is a list of bridges documented by the Historic American Engineering Record in the U.S. State of Colorado.

## Bridges

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| Survey No. | Name (as assigned by HAER) | Status | Type | Built | Documented | Carries | Crosses | Location | County | Coordinates |
| CO-7 | South Platte Canyon Road Bridge | | | | | South Platte Canyon Road | | Denver | Denver | |
| CO-9 | Keystone Bridge | Replaced | Pratt truss | 1870 | 1983 | Denver, South Park and Pacific Railroad (former) | South Platte River south fork | Waterton | Jefferson and Douglas | 39°27′29″N 105°07′38″W﻿ / ﻿39.45806°N 105.12722°W﻿ / 39.45806; -105.12722﻿ (Keystone Bridge) |
| CO-10 | Uintah Railway, Whiskey Creek Trestle | Demolished | Trestle | 1906 | 1988 | Uintah Railway | Whiskey Creek | Rangely | Rio Blanco | 39°43′04″N 109°01′27″W﻿ / ﻿39.71778°N 109.02417°W﻿ / 39.71778; -109.02417﻿ (Uintah Railway, Whiskey Creek Trestle) |
| CO-13 | Deansbury Bridge | | Warren truss | 1922 | 1983 | Denver, South Park and Pacific Railroad (former) | South Platte River | Waterton | Jefferson and Douglas | |
| CO-20 | Manzanola Bridge | Replaced | Pennsylvania truss | 1911 | 1984 | SH 207 | Arkansas River | Manzanola | Otero and Crowley | 38°07′38″N 103°51′42″W﻿ / ﻿38.12722°N 103.86167°W﻿ / 38.12722; -103.86167﻿ (Manzanola Bridge) |
| CO-24 | Denver, South Park and Pacific Railroad Truss Bridge | Extant | Pratt truss | 1881 | 1984 | Denver, South Park and Pacific Railroad (former) | Pomeroy Gulch | Romley | Chaffee | 38°40′30″N 106°21′53″W﻿ / ﻿38.67500°N 106.36472°W﻿ / 38.67500; -106.36472﻿ (Denver South Park & Pacific Railroad Truss Bridge) |
| CO-25 CO-49 | Denver, South Park and Pacific Railroad Bridge Hortense Bridge | Replaced | Queen post truss | 1880 | 1984 1986 | SH 162 | Chalk Creek | Nathrop | Chaffee | 38°44′01″N 106°09′34″W﻿ / ﻿38.73361°N 106.15944°W﻿ / 38.73361; -106.15944﻿ (Denver South Park & Pacific Railroad Bridge) |
| CO-30 | Colorado Historic Bridges Survey | | | | | | | Denver | Denver | |
| CO-30-G | Black Bridge | Demolished | Pratt truss | 1891 | 1988 | 25 3/10 Road | Gunnison River | Grand Junction | Mesa | 39°02′52″N 108°34′33″W﻿ / ﻿39.04778°N 108.57583°W﻿ / 39.04778; -108.57583﻿ (Black Bridge) |
| CO-35 | Four Mile Bridge | Replaced | Pratt truss | 1909 | 1986 | CR 371 | Arkansas River | Buena Vista | Chaffee | 38°51′57″N 106°08′20″W﻿ / ﻿38.86583°N 106.13889°W﻿ / 38.86583; -106.13889﻿ (Four Mile Bridge) |
| CO-36 | State Bridge | Replaced | Pratt truss | 1908 | 1985 | CR 17 | Rio Grande | Del Norte | Rio Grande | 37°41′20″N 106°27′36″W﻿ / ﻿37.68889°N 106.46000°W﻿ / 37.68889; -106.46000﻿ (State Bridge) |
| CO-37 | Swink Bridge | Replaced | Parker truss | 1912 | 1985 | CR 24.5 | Arkansas River | Swink | Otero | 38°01′37″N 103°37′44″W﻿ / ﻿38.02694°N 103.62889°W﻿ / 38.02694; -103.62889﻿ (Swink Bridge) |
| CO-40 | Hotchkiss Bridge | Replaced | Parker truss | 1911 | 1987 | 3400 Road | North Fork Gunnison River | Hotchkiss | Delta | 38°47′31″N 107°43′33″W﻿ / ﻿38.79194°N 107.72583°W﻿ / 38.79194; -107.72583﻿ (Hotchkiss Bridge) |
| CO-41 | Fifth Street Bridge | Replaced | Parker truss | 1933 | 1987 | US 50 | Colorado River | Grand Junction | Mesa | 39°03′16″N 108°33′57″W﻿ / ﻿39.05444°N 108.56583°W﻿ / 39.05444; -108.56583﻿ (Fifth Street Bridge) |
| CO-44 | Baseline Bridge | Replaced | Warren truss | 1926 | 1986 | CR 2 (East 168th Avenue) | South Platte River | Brighton | Adams | 40°00′01″N 104°49′39″W﻿ / ﻿40.00028°N 104.82750°W﻿ / 40.00028; -104.82750﻿ (Baseline Bridge) |
| CO-48 | Broadway Bridge | Replaced | Steel built-up girder | 1896 | 1986 | Broadway | Cherry Creek | Denver | Denver | 39°43′37″N 104°59′15″W﻿ / ﻿39.72694°N 104.98750°W﻿ / 39.72694; -104.98750﻿ (Broadway Bridge) |
| CO-51 | Twentieth Street Viaduct | Replaced | Viaduct | 1911 | 1991 | 20th Street | South Platte River | Denver | Denver | 39°45′38″N 105°00′15″W﻿ / ﻿39.76056°N 105.00417°W﻿ / 39.76056; -105.00417﻿ (Twentieth Street Viaduct) |
| CO-52 | Fourteenth Street Viaduct | Demolished | Viaduct | 1898 | 1988 | 14th Street | South Platte River | Denver | Denver | 39°44′57″N 105°00′10″W﻿ / ﻿39.74917°N 105.00278°W﻿ / 39.74917; -105.00278﻿ (Fourteenth Street Viaduct) |
| CO-53 | Commercial Street Bridge | Replaced | Reinforced concrete through arch | 1905 | 1988 | Commercial Street | Purgatoire River | Trinidad | Las Animas | 37°10′21″N 104°30′26″W﻿ / ﻿37.17250°N 104.50722°W﻿ / 37.17250; -104.50722﻿ (Commercial Street Bridge) |
| CO-54 | Linden Avenue Bridge | Replaced | Pennsylvania truss | 1912 | 1988 | Linden Avenue | Purgatoire River | Trinidad | Las Animas | 37°10′22″N 104°29′57″W﻿ / ﻿37.17278°N 104.49917°W﻿ / 37.17278; -104.49917﻿ (Linden Avenue Bridge) |
| CO-55 | Nepesta Bridge | Replaced | Pratt truss | 1905 | 1988 | CR 613 | Arkansas River | Boone | Pueblo | 38°10′44″N 104°08′21″W﻿ / ﻿38.17889°N 104.13917°W﻿ / 38.17889; -104.13917﻿ (Nepesta Bridge) |
| CO-57 | Delgany Street Railroad Bridge | Extant | Pratt truss | 1923 | 1988 | Delgany Street | Cherry Creek | Denver | Denver | 39°45′05″N 105°00′19″W﻿ / ﻿39.75139°N 105.00528°W﻿ / 39.75139; -105.00528﻿ (Delgany Street Railroad Bridge) |
| CO-58 | Cherry Creek Railroad Bridge | Extant | Pratt truss | 1923 | 1988 | Colorado and Southern Railway | Cherry Creek | Denver | Denver | 39°45′5″N 105°00′19″W﻿ / ﻿39.75139°N 105.00528°W﻿ / 39.75139; -105.00528﻿ (Cherry Creek Railroad Bridge) |
| CO-59 | Nineteenth Street Bridge | Extant | Pratt truss | 1888 | 1991 | 19th Street | South Platte River | Denver | Denver | 39°45′35″N 105°00′15″W﻿ / ﻿39.75972°N 105.00417°W﻿ / 39.75972; -105.00417﻿ (Nineteenth Street Bridge) |
| CO-60 | Four Mile Bridge | Replaced | Pratt truss | 1900 | 1988 | CR 42 | Elk River | Steamboat Springs | Routt | 40°30′53″N 106°57′14″W﻿ / ﻿40.51472°N 106.95389°W﻿ / 40.51472; -106.95389﻿ (Four Mile Bridge) |
| CO-62 | Delta Bridge | Replaced | Parker truss | 1924 | 1989 | US 50 | Gunnison River | Delta | Delta | 38°45′02″N 108°04′10″W﻿ / ﻿38.75056°N 108.06944°W﻿ / 38.75056; -108.06944﻿ (Delta Bridge) |
| CO-70 | Roubideau Bridge | Replaced | Warren truss | 1911 | 1991 | G50 Road | Gunnison River | Delta | Delta | 38°44′53″N 108°07′12″W﻿ / ﻿38.74806°N 108.12000°W﻿ / 38.74806; -108.12000﻿ (Roubideau Bridge) |
| CO-72 | Saxton Bridge | Replaced | Parker truss | 1890 | 1993 | 650 Road | Gunnison River | Delta | Delta | 38°45′28″N 108°15′30″W﻿ / ﻿38.75778°N 108.25833°W﻿ / 38.75778; -108.25833﻿ (Saxton Bridge) |
| CO-76 | Baxterville Bridge | Replaced | Pratt truss | 1909 | 1993 | Masonic Park Drive | Rio Grande | South Fork | Rio Grande | 37°42′03″N 106°41′08″W﻿ / ﻿37.70083°N 106.68556°W﻿ / 37.70083; -106.68556﻿ (Baxterville Bridge) |
| CO-77 | Elson Bridge | Replaced | Pratt truss | 1905 | 1993 | CR 36 | Purgatoire River | El Moro | Las Animas | 37°14′52″N 104°24′19″W﻿ / ﻿37.24778°N 104.40528°W﻿ / 37.24778; -104.40528﻿ (Elson Bridge) |
| CO-102 | Dolores River Bridge | Replaced | Pennsylvania truss | 1952 | 2016 | SH 90 | Dolores River | Bedrock | Montrose | 38°18′38″N 108°53′09″W﻿ / ﻿38.31056°N 108.88583°W﻿ / 38.31056; -108.88583﻿ (Dolores River Bridge) |