US Bridges

FM 1808 over Colorado River

Good

Mitchell County, Texas · 5.1 MI W of SH 208 · Structure no. 081680211101002

Built
1956
69 years old, rebuilt 1988
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
408 ft
3 main spans
Daily traffic
162
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1808 over Colorado River is a steel continuous stringer/multi-beam or girder carrying FM 1808 over Colorado River in Mitchell County, Texas. It was built in 1956 and reconstructed in 1988, so it is 69 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 162 vehicles a day, roughly 24% of them trucks, projected to reach 680 by 2033. The structure is 408 ft (124.4 m) long and 36 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesFM 1808
CrossesColorado River
Location5.1 MI W of SH 208
RouteState Highway 1808
StateTexas
Coordinates32.47835, -100.94907
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20
Structure length408 ft (124.4 m)
Longest span90 ft (27.4 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic162 (2020)
Projected traffic680 by 2033
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1808 over Colorado River built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1988.

What condition is FM 1808 over Colorado River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does FM 1808 over Colorado River carry?

About 162 vehicles per day (2020 count), of which roughly 24% are trucks.

How long is FM 1808 over Colorado River?

The structure is 408 ft (124.4 m) long with a longest span of 90 ft (27.4 m) and a deck 36 ft wide.

Who owns FM 1808 over Colorado River?

It is owned by the State Highway Agency.