US Bridges

FM 521 over Colorado River West Rel

Good

Matagorda County, Texas · 3.45 MI E of FM 1468 · Structure no. 131580084603016

Built
2013
12 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
170 ft
1 main span
Daily traffic
1,865
2023 count
Owner
State
State Highway Agency

About this bridge

FM 521 over Colorado River West Rel is a prestressed concrete stringer/multi-beam or girder carrying FM 521 over Colorado River West Rel in Matagorda County, Texas. It was built in 2013, so it is 12 years old, younger 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 1,865 vehicles a day, roughly 13% of them trucks, projected to reach 2,611 by 2042. The structure is 170 ft (51.8 m) long and 56 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesFM 521
CrossesColorado River West Rel
Location3.45 MI E of FM 1468
RouteState Highway 521
StateTexas
Coordinates28.78708, -96.00909
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+1 approach)
Design loadHL 93
Structure length170 ft (51.8 m)
Longest span110 ft (33.5 m)
Deck width56 ft (17.1 m)
Roadway width53 ft (16.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,865 (2023)
Projected traffic2,611 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 521 over Colorado River West Rel built?

It was built in 2013, making it 12 years old in 2025.

What condition is FM 521 over Colorado River West Rel 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 November 2024.

How much traffic does FM 521 over Colorado River West Rel carry?

About 1,865 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is FM 521 over Colorado River West Rel?

The structure is 170 ft (51.8 m) long with a longest span of 110 ft (33.5 m) and a deck 56 ft wide.

Who owns FM 521 over Colorado River West Rel?

It is owned by the State Highway Agency.