US Bridges

Loop 150 over Gills Branch

Good

Bastrop County, Texas · 1.3 MI E of SH 71 · Structure no. 140110026510011

Built
1932
93 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
13,356
2023 count
Owner
State
State Highway Agency

About this bridge

Loop 150 over Gills Branch is a concrete culvert carrying Loop 150 over Gills Branch in Bastrop County, Texas. It was built in 1932, so it is 93 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 13,356 vehicles a day, roughly 4% of them trucks, projected to reach 18,431 by 2042. The structure is 33 ft (10.1 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLoop 150
CrossesGills Branch
Location1.3 MI E of SH 71
RouteState Highway 150
StateTexas
Coordinates30.11066, -97.31029
Functional classUrban Other Principal Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,356 (2023)
Projected traffic18,431 by 2042
Trucks4%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Loop 150 over Gills Branch built?

It was built in 1932, making it 93 years old in 2025.

What condition is Loop 150 over Gills 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 November 2024.

How much traffic does Loop 150 over Gills Branch carry?

About 13,356 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Loop 150 over Gills Branch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 43 ft wide.

Who owns Loop 150 over Gills Branch?

It is owned by the State Highway Agency.