US Bridges

Trammel-Fresno RD over Mustang Bayou

Good

Fort Bend County, Texas · 0.30 MI W of FM 521 · Structure no. 120800AA0565001

Built
1995
30 years old, rebuilt 2019
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
2,940
2015 count
Owner
County
County Highway Agency

About this bridge

Trammel-Fresno RD over Mustang Bayou is a prestressed concrete box beam or girders - multiple carrying Trammel-Fresno RD over Mustang Bayou in Fort Bend County, Texas. It was built in 1995 and reconstructed in 2019, so it is 30 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 2,940 vehicles a day, projected to reach 3,000 by 2035. The structure is 60 ft (18.3 m) long and 70 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTrammel-Fresno RD
CrossesMustang Bayou
Location0.30 MI W of FM 521
RouteCounty Highway 0
CountyFort Bend County
StateTexas
Coordinates29.53609, -95.45536
Functional classRural Local

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width70 ft (21.4 m)
Roadway width68 ft (20.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,940 (2015)
Projected traffic3,000 by 2035
Trucks0%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Trammel-Fresno RD over Mustang Bayou built?

It was built in 1995, making it 30 years old in 2025. It was reconstructed in 2019.

What condition is Trammel-Fresno RD over Mustang Bayou 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 September 2023.

How much traffic does Trammel-Fresno RD over Mustang Bayou carry?

About 2,940 vehicles per day (2015 count).

How long is Trammel-Fresno RD over Mustang Bayou?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 70 ft wide.

Who owns Trammel-Fresno RD over Mustang Bayou?

It is owned by the County Highway Agency.