US Bridges

FM 116 over Shell Mountain Branch

Fair

Coryell County, Texas · 7.83 MI S of US 84 · Structure no. 090500072401006

Built
1944
81 years old, rebuilt 2004
Condition
Fair
inspected December 2022
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
5,230
2020 count
Owner
State
State Highway Agency

About this bridge

FM 116 over Shell Mountain Branch is a concrete culvert carrying FM 116 over Shell Mountain Branch in Coryell County, Texas. It was built in 1944 and reconstructed in 2004, so it is 81 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 5,230 vehicles a day, roughly 13% of them trucks, projected to reach 5,020 by 2033. The structure is 24 ft (7.3 m) long and 88 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesFM 116
CrossesShell Mountain Branch
Location7.83 MI S of US 84
RouteState Highway 116
CountyCoryell County
StateTexas
Coordinates31.34226, -97.85959
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 2022
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 rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length24 ft (7.3 m)
Longest span7 ft (2.1 m)
Deck width88 ft (26.8 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,230 (2020)
Projected traffic5,020 by 2033
Trucks13%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 116 over Shell Mountain Branch built?

It was built in 1944, making it 81 years old in 2025. It was reconstructed in 2004.

What condition is FM 116 over Shell Mountain Branch 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 2022.

How much traffic does FM 116 over Shell Mountain Branch carry?

About 5,230 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is FM 116 over Shell Mountain Branch?

The structure is 24 ft (7.3 m) long with a longest span of 7 ft (2.1 m) and a deck 88 ft wide.

Who owns FM 116 over Shell Mountain Branch?

It is owned by the State Highway Agency.