US Bridges

SH 35 over Choc. Bayou Waterway

Good

Brazoria County, Texas · 3.50 MI SW of FM 2917 · Structure no. 120200017803029

Built
1937
88 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
29 ft
5 main spans
Daily traffic
9,032
2016 count
Owner
State
State Highway Agency

About this bridge

SH 35 over Choc. Bayou Waterway is a concrete culvert carrying SH 35 over Choc. Bayou Waterway in Brazoria County, Texas. It was built in 1937, so it is 88 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 9,032 vehicles a day, roughly 8% of them trucks, projected to reach 10,650 by 2033. The structure is 29 ft (8.8 m) long and 50 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesSH 35
CrossesChoc. Bayou Waterway
Location3.50 MI SW of FM 2917
RouteState Highway 35
StateTexas
Coordinates29.30125, -95.31301
Functional classRural Minor 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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span5 ft (1.5 m)
Deck width50 ft (15.3 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,032 (2016)
Projected traffic10,650 by 2033
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 SH 35 over Choc. Bayou Waterway built?

It was built in 1937, making it 88 years old in 2025.

What condition is SH 35 over Choc. Bayou Waterway 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 November 2024.

How much traffic does SH 35 over Choc. Bayou Waterway carry?

About 9,032 vehicles per day (2016 count), of which roughly 8% are trucks.

How long is SH 35 over Choc. Bayou Waterway?

The structure is 29 ft (8.8 m) long with a longest span of 5 ft (1.5 m) and a deck 50 ft wide.

Who owns SH 35 over Choc. Bayou Waterway?

It is owned by the State Highway Agency.