US Bridges

FM 971 over Mileham Branch

Good

Williamson County, Texas · 8.30 MI W of SH 95 · Structure no. 142460269001010

Built
1969
56 years old, rebuilt 2022
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
45 ft
4 main spans
Daily traffic
1,899
2021 count
Owner
State
State Highway Agency

About this bridge

FM 971 over Mileham Branch is a concrete culvert carrying FM 971 over Mileham Branch in Williamson County, Texas. It was built in 1969 and reconstructed in 2022, so it is 56 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 1,899 vehicles a day, roughly 16% of them trucks, projected to reach 2,645 by 2041. The structure is 45 ft (13.7 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesFM 971
CrossesMileham Branch
Location8.30 MI W of SH 95
RouteState Highway 971
CountyWilliamson County
StateTexas
Coordinates30.68087, -97.55794
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 inspectionJanuary 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 adequacy9: Superior to present desirable 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 spans4
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span9 ft (2.7 m)
Deck width52 ft (15.9 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,899 (2021)
Projected traffic2,645 by 2041
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 971 over Mileham Branch built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2022.

What condition is FM 971 over Mileham 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 January 2023.

How much traffic does FM 971 over Mileham Branch carry?

About 1,899 vehicles per day (2021 count), of which roughly 16% are trucks.

How long is FM 971 over Mileham Branch?

The structure is 45 ft (13.7 m) long with a longest span of 9 ft (2.7 m) and a deck 52 ft wide.

Who owns FM 971 over Mileham Branch?

It is owned by the State Highway Agency.