US Bridges

SH 105 over Outfall Channel

Fair

Hardin County, Texas · 3.45 MI E of SH 326 · Structure no. 201010033904002

Built
1939
86 years old, rebuilt 1974
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
28 ft
5 main spans
Daily traffic
10,307
2022 count
Owner
State
State Highway Agency

About this bridge

SH 105 over Outfall Channel is a concrete culvert carrying SH 105 over Outfall Channel in Hardin County, Texas. It was built in 1939 and reconstructed in 1974, 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 10,307 vehicles a day, roughly 12% of them trucks, projected to reach 15,667 by 2042. The structure is 28 ft (8.5 m) long and 84 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

Location

Open in Google Maps
CarriesSH 105
CrossesOutfall Channel
Location3.45 MI E of SH 326
RouteState Highway 105
CountyHardin County
StateTexas
Coordinates30.13886, -94.34462
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 inspectionMarch 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 geometry6: 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
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length28 ft (8.5 m)
Longest span5 ft (1.5 m)
Deck width84 ft (25.6 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,307 (2022)
Projected traffic15,667 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 105 over Outfall Channel built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1974.

What condition is SH 105 over Outfall Channel 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 March 2024.

How much traffic does SH 105 over Outfall Channel carry?

About 10,307 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is SH 105 over Outfall Channel?

The structure is 28 ft (8.5 m) long with a longest span of 5 ft (1.5 m) and a deck 84 ft wide.

Who owns SH 105 over Outfall Channel?

It is owned by the State Highway Agency.