US Bridges

SH 146 over Horsepen Bayou

Good

Chambers County, Texas · 0.9 MI N of FM 565 · Structure no. 200360038902028

Built
1943
82 years old, rebuilt 1984
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
34,919
2022 count
Owner
State
State Highway Agency

About this bridge

SH 146 over Horsepen Bayou is a concrete culvert carrying SH 146 over Horsepen Bayou in Chambers County, Texas. It was built in 1943 and reconstructed in 1984, so it is 82 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 34,919 vehicles a day, roughly 14% of them trucks, projected to reach 54,380 by 2033. The structure is 23 ft (7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSH 146
CrossesHorsepen Bayou
Location0.9 MI N of FM 565
RouteState Highway 146
StateTexas
Coordinates29.78562, -94.91174
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 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
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 spans2
Design loadH 15
Structure length23 ft (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 traffic34,919 (2022)
Projected traffic54,380 by 2033
Trucks14%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 146 over Horsepen Bayou built?

It was built in 1943, making it 82 years old in 2025. It was reconstructed in 1984.

What condition is SH 146 over Horsepen Bayou 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 June 2024.

How much traffic does SH 146 over Horsepen Bayou carry?

About 34,919 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is SH 146 over Horsepen Bayou?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns SH 146 over Horsepen Bayou?

It is owned by the State Highway Agency.