US Bridges

FM 2977 over Big Creek

Good

Fort Bend County, Texas · 2.25 MI NE of FM 361 · Structure no. 120800304801002

Built
1968
57 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
121 ft
4 main spans
Daily traffic
5,710
2020 count
Owner
State
State Highway Agency

About this bridge

FM 2977 over Big Creek is a concrete stringer/multi-beam or girder carrying FM 2977 over Big Creek in Fort Bend County, Texas. It was built in 1968, so it is 57 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 5,710 vehicles a day, roughly 8% of them trucks, projected to reach 7,530 by 2033. The structure is 121 ft (36.9 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM 2977
CrossesBig Creek
Location2.25 MI NE of FM 361
RouteState Highway 2977
StateTexas
Coordinates29.4691, -95.77174
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length121 ft (36.9 m)
Longest span30 ft (9.1 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,710 (2020)
Projected traffic7,530 by 2033
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 2977 over Big Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is FM 2977 over Big Creek 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 October 2024.

How much traffic does FM 2977 over Big Creek carry?

About 5,710 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is FM 2977 over Big Creek?

The structure is 121 ft (36.9 m) long with a longest span of 30 ft (9.1 m) and a deck 35 ft wide.

Who owns FM 2977 over Big Creek?

It is owned by the State Highway Agency.