US Bridges

US 79 over Three Mile Creek

Fair

Robertson County, Texas · 1.1 MI E of FM 2549 · Structure no. 171980020501035

Built
1942
83 years old, rebuilt 1970
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
5,041
2023 count
Owner
State
State Highway Agency

About this bridge

US 79 over Three Mile Creek is a concrete culvert carrying US 79 over Three Mile Creek in Robertson County, Texas. It was built in 1942 and reconstructed in 1970, so it is 83 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 5,041 vehicles a day, roughly 36% of them trucks, projected to reach 7,057 by 2042. The structure is 33 ft (10.1 m) long and 78 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesUS 79
CrossesThree Mile Creek
Location1.1 MI E of FM 2549
RouteU.S. Route 79
StateTexas
Coordinates30.96474, -96.55635
Functional classRural Principal Arterial - Other

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 inspectionNovember 2024
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 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 spans3
Design loadH 15
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width78 ft (23.9 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,041 (2023)
Projected traffic7,057 by 2042
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 US 79 over Three Mile Creek built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 1970.

What condition is US 79 over Three Mile 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 November 2024.

How much traffic does US 79 over Three Mile Creek carry?

About 5,041 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is US 79 over Three Mile Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 78 ft wide.

Who owns US 79 over Three Mile Creek?

It is owned by the State Highway Agency.