US Bridges

SH 21 over Wilson Branch

Fair

Sabine County, Texas · 0.70 MI E of SH 87 · Structure no. 112020011904015

Built
1966
59 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
2,649
2020 count
Owner
State
State Highway Agency

About this bridge

SH 21 over Wilson Branch is a concrete culvert carrying SH 21 over Wilson Branch in Sabine County, Texas. It was built in 1966, so it is 59 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 2,649 vehicles a day, roughly 8% of them trucks, projected to reach 3,709 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSH 21
CrossesWilson Branch
Location0.70 MI E of SH 87
RouteState Highway 21
CountySabine County
StateTexas
Coordinates31.43266, -93.83455
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 inspectionJune 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 traffic2,649 (2020)
Projected traffic3,709 by 2040
Trucks8%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 SH 21 over Wilson Branch built?

It was built in 1966, making it 59 years old in 2025.

What condition is SH 21 over Wilson 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 June 2024.

How much traffic does SH 21 over Wilson Branch carry?

About 2,649 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is SH 21 over Wilson Branch?

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

Who owns SH 21 over Wilson Branch?

It is owned by the State Highway Agency.