US Bridges

FM 939 over Salt Creek

Good

McLennan County, Texas · 3.6 MI SE of SH 31 · Structure no. 091610119201006

Built
1958
67 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
538
2020 count
Owner
State
State Highway Agency

About this bridge

FM 939 over Salt Creek is a concrete culvert carrying FM 939 over Salt Creek in McLennan County, Texas. It was built in 1958, so it is 67 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 538 vehicles a day, roughly 9% of them trucks, projected to reach 950 by 2037. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM 939
CrossesSalt Creek
Location3.6 MI SE of SH 31
RouteState Highway 939
StateTexas
Coordinates31.66437, -96.90643
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: 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
DeckNot applicable
Main spans3
Design loadOther
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic538 (2020)
Projected traffic950 by 2037
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 FM 939 over Salt Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM 939 over Salt Creek 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 March 2023.

How much traffic does FM 939 over Salt Creek carry?

About 538 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is FM 939 over Salt Creek?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m).

Who owns FM 939 over Salt Creek?

It is owned by the State Highway Agency.