US Bridges

FM 83 over Walnut Branch

Fair

San Augustine County, Texas · 1.60 MI E of FM 147 · Structure no. 112030263701001

Built
1963
62 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,591
2020 count
Owner
State
State Highway Agency

About this bridge

FM 83 over Walnut Branch is a concrete culvert carrying FM 83 over Walnut Branch in San Augustine County, Texas. It was built in 1963, so it is 62 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 1,591 vehicles a day, roughly 7% of them trucks, projected to reach 2,227 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesFM 83
CrossesWalnut Branch
Location1.60 MI E of FM 147
RouteState Highway 83
CountySan Augustine County
StateTexas
Coordinates31.29566, -94.24706
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
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 rating44.6 US tons
Inventory rating26.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,591 (2020)
Projected traffic2,227 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 83 over Walnut Branch built?

It was built in 1963, making it 62 years old in 2025.

What condition is FM 83 over Walnut 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 May 2024.

How much traffic does FM 83 over Walnut Branch carry?

About 1,591 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is FM 83 over Walnut Branch?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m).

Who owns FM 83 over Walnut Branch?

It is owned by the State Highway Agency.