US Bridges

FM 971 over Granger Branch

Good

Williamson County, Texas · 0.40 MI E of SH 95 · Structure no. 142460120202014

Built
1956
69 years old, rebuilt 1977
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
53 ft
5 main spans
Daily traffic
1,290
2023 count
Owner
State
State Highway Agency

About this bridge

FM 971 over Granger Branch is a concrete culvert carrying FM 971 over Granger Branch in Williamson County, Texas. It was built in 1956 and reconstructed in 1977, 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 1,290 vehicles a day, roughly 17% of them trucks, projected to reach 1,515 by 2041. The structure is 53 ft (16.2 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM 971
CrossesGranger Branch
Location0.40 MI E of SH 95
RouteState Highway 971
CountyWilliamson County
StateTexas
Coordinates30.7171, -97.43611
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadOther
Structure length53 ft (16.2 m)
Longest span10 ft (3 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,290 (2023)
Projected traffic1,515 by 2041
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 971 over Granger Branch built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1977.

What condition is FM 971 over Granger Branch 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 March 2023.

How much traffic does FM 971 over Granger Branch carry?

About 1,290 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is FM 971 over Granger Branch?

The structure is 53 ft (16.2 m) long with a longest span of 10 ft (3 m) and a deck 41 ft wide.

Who owns FM 971 over Granger Branch?

It is owned by the State Highway Agency.