US Bridges

Osr over Navasota River

Good

Madison County, Texas · 2.1 MI W of FM 1452 · Structure no. 171540047503147

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
297 ft
1 main span
Daily traffic
1,040
2019 count
Owner
State
State Highway Agency

About this bridge

Osr over Navasota River is a prestressed concrete stringer/multi-beam or girder carrying Osr over Navasota River in Madison County, Texas. It was built in 2021, so it is 4 years old, younger 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 1,040 vehicles a day, roughly 18% of them trucks, projected to reach 1,248 by 2039. The structure is 297 ft (90.4 m) long and 42 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

CarriesOsr
CrossesNavasota River
Location2.1 MI W of FM 1452
RouteState Highway 999
StateTexas
Coordinates30.97375, -96.24102
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadHL 93
Structure length297 ft (90.4 m)
Longest span76 ft (23.3 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,040 (2019)
Projected traffic1,248 by 2039
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Osr over Navasota River built?

It was built in 2021, making it 4 years old in 2025.

What condition is Osr over Navasota River 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 June 2023.

How much traffic does Osr over Navasota River carry?

About 1,040 vehicles per day (2019 count), of which roughly 18% are trucks.

How long is Osr over Navasota River?

The structure is 297 ft (90.4 m) long with a longest span of 76 ft (23.3 m) and a deck 42 ft wide.

Who owns Osr over Navasota River?

It is owned by the State Highway Agency.