US Bridges

SH 317 over Tributary S Bosque River

Fair

McLennan County, Texas · 2.3 MI S of US 84 · Structure no. 091610039803007

Built
1939
86 years old, rebuilt 1998
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
39 ft
5 main spans
Daily traffic
5,630
2023 count
Owner
State
State Highway Agency

About this bridge

SH 317 over Tributary S Bosque River is a concrete culvert carrying SH 317 over Tributary S Bosque River in McLennan County, Texas. It was built in 1939 and reconstructed in 1998, so it is 86 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 5,630 vehicles a day, roughly 9% of them trucks, projected to reach 7,700 by 2037. The structure is 39 ft (11.9 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSH 317
CrossesTributary S Bosque River
Location2.3 MI S of US 84
RouteState Highway 317
CountyMcLennan County
StateTexas
Coordinates31.41393, -97.39184
Functional classRural Minor 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 inspectionDecember 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 geometry3: Basically intolerable, requiring high priority of corrective action
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 loadH 15
Structure length39 ft (11.9 m)
Longest span7 ft (2.1 m)
Deck width60 ft (18.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,630 (2023)
Projected traffic7,700 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 317 over Tributary S Bosque River built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1998.

What condition is SH 317 over Tributary S Bosque River 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 December 2024.

How much traffic does SH 317 over Tributary S Bosque River carry?

About 5,630 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SH 317 over Tributary S Bosque River?

The structure is 39 ft (11.9 m) long with a longest span of 7 ft (2.1 m) and a deck 60 ft wide.

Who owns SH 317 over Tributary S Bosque River?

It is owned by the State Highway Agency.