US Bridges

Old SH 36 over Brazos River Rel

FairPosted for load

Brazoria County, Texas · 0.60 MI E of SH 36 · Structure no. 120200AA1097002

Built
1931
94 years old, rebuilt 1958
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
41 ft
6 main spans
Daily traffic
760
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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 760 vehicles a day, roughly 1% of them trucks, projected to reach 1,000 by 2032. The structure is 41 ft (12.5 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
Location0.60 MI E of SH 36
RouteCounty Highway 0
CountyBrazoria County
StateTexas
Coordinates28.9642, -95.39911
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 protection8 Very GoodNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 length41 ft (12.5 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 traffic760 (2012)
Projected traffic1,000 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 760 vehicles per day (2012 count), of which roughly 1% are trucks.

How long is Old SH 36 over Brazos River Rel?

The structure is 41 ft (12.5 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.