US Bridges

Old SH 36 over Brazos River Rel

Fair

Brazoria County, Texas · 1.65 MI E of SH 36 · Structure no. 120200AA1097005

Built
1931
94 years old, rebuilt 1958
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
6 main spans
Daily traffic
250
2012 count
Owner
County
County Highway Agency

About this bridge

Old SH 36 over Brazos River Rel is a concrete culvert carrying Old SH 36 over Brazos River Rel in Brazoria County, Texas. It was built in 1931 and reconstructed in 1958, so it is 94 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 300 by 2032. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesOld SH 36
CrossesBrazos River Rel
Location1.65 MI E of SH 36
RouteCounty Highway 0
CountyBrazoria County
StateTexas
Coordinates28.96009, -95.3822
Functional classRural Local

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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2012)
Projected traffic300 by 2032
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Old SH 36 over Brazos River Rel built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1958.

What condition is Old SH 36 over Brazos River Rel 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 November 2023.

How much traffic does Old SH 36 over Brazos River Rel carry?

About 250 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Old SH 36 over Brazos River Rel?

The structure is 40 ft (12.2 m) long with a longest span of 6 ft (1.8 m).

Who owns Old SH 36 over Brazos River Rel?

It is owned by the County Highway Agency.