US Bridges

SH 36 over Allens Creek

Fair

Austin County, Texas · 0.46 MI S of IH 10 · Structure no. 130080018703015

Built
1932
93 years old, rebuilt 1969
Condition
Fair
inspected January 2023
Type
Culvert
Concrete
Length
39 ft
6 main spans
Daily traffic
15,203
2020 count
Owner
State
State Highway Agency

About this bridge

SH 36 over Allens Creek is a concrete culvert carrying SH 36 over Allens Creek in Austin County, Texas. It was built in 1932 and reconstructed in 1969, 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15,203 vehicles a day, roughly 11% of them trucks, projected to reach 18,540 by 2038. The structure is 39 ft (11.9 m) long and 69 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSH 36
CrossesAllens Creek
Location0.46 MI S of IH 10
RouteState Highway 36
CountyAustin County
StateTexas
Coordinates29.75831, -96.14994
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans6
Design loadH 15
Structure length39 ft (11.9 m)
Longest span6 ft (1.8 m)
Deck width69 ft (21.1 m)
Roadway width67 ft (20.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,203 (2020)
Projected traffic18,540 by 2038
Trucks11%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 SH 36 over Allens Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1969.

What condition is SH 36 over Allens Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2023.

How much traffic does SH 36 over Allens Creek carry?

About 15,203 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is SH 36 over Allens Creek?

The structure is 39 ft (11.9 m) long with a longest span of 6 ft (1.8 m) and a deck 69 ft wide.

Who owns SH 36 over Allens Creek?

It is owned by the State Highway Agency.