US Bridges

Osr over Cobbs Branch

Fair

Madison County, Texas · 1.55 MI NE of FM 39 · Structure no. 171540047503072

Built
1958
67 years old, rebuilt 2008
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
90 ft
3 main spans
Daily traffic
1,559
2020 count
Owner
State
State Highway Agency

About this bridge

Osr over Cobbs Branch is a concrete stringer/multi-beam or girder carrying Osr over Cobbs Branch in Madison County, Texas. It was built in 1958 and reconstructed in 2008, so it is 67 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 1,559 vehicles a day, roughly 13% of them trucks, projected to reach 3,171 by 2039. The structure is 90 ft (27.4 m) long and 44 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesOsr
CrossesCobbs Branch
Location1.55 MI NE of FM 39
RouteState Highway 999
CountyMadison County
StateTexas
Coordinates31.03978, -96.0929
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,559 (2020)
Projected traffic3,171 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Cobbs Branch built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2008.

What condition is Osr over Cobbs Branch 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 June 2023.

How much traffic does Osr over Cobbs Branch carry?

About 1,559 vehicles per day (2020 count), of which roughly 13% are trucks.

How long is Osr over Cobbs Branch?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns Osr over Cobbs Branch?

It is owned by the State Highway Agency.