US Bridges

Osr over Snake Branch

Good

Brazos County, Texas · 5.25 MI NE of FM 46 · Structure no. 170210047502055

Built
1954
71 years old, rebuilt 2021
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
55 ft
8 main spans
Daily traffic
303
2020 count
Owner
State
State Highway Agency

About this bridge

Osr over Snake Branch is a concrete culvert carrying Osr over Snake Branch in Brazos County, Texas. It was built in 1954 and reconstructed in 2021, so it is 71 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 303 vehicles a day, roughly 27% of them trucks, projected to reach 424 by 2040. The structure is 55 ft (16.9 m) long and 50 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesOsr
CrossesSnake Branch
Location5.25 MI NE of FM 46
RouteState Highway 999
StateTexas
Coordinates30.93669, -96.31145
Functional classRural Major Collector

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 spans8
Design loadOther
Structure length55 ft (16.9 m)
Longest span6 ft (1.8 m)
Deck width50 ft (15.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic303 (2020)
Projected traffic424 by 2040
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Osr over Snake Branch built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2021.

What condition is Osr over Snake Branch 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 February 2023.

How much traffic does Osr over Snake Branch carry?

About 303 vehicles per day (2020 count), of which roughly 27% are trucks.

How long is Osr over Snake Branch?

The structure is 55 ft (16.9 m) long with a longest span of 6 ft (1.8 m) and a deck 50 ft wide.

Who owns Osr over Snake Branch?

It is owned by the State Highway Agency.