US Bridges

US 79 over Navasota River Relief

Good

Leon County, Texas · 5.45 MI S of SH 7 · Structure no. 171450020503046

Built
1959
66 years old, rebuilt 1981
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
303 ft
10 main spans
Daily traffic
3,180
2020 count
Owner
State
State Highway Agency

About this bridge

US 79 over Navasota River Relief is a concrete stringer/multi-beam or girder carrying US 79 over Navasota River Relief in Leon County, Texas. It was built in 1959 and reconstructed in 1981, so it is 66 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 3,180 vehicles a day, roughly 23% of them trucks, projected to reach 6,360 by 2033. The structure is 303 ft (92.4 m) long and 44 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesUS 79
CrossesNavasota River Relief
Location5.45 MI S of SH 7
RouteU.S. Route 79
StateTexas
Coordinates31.17188, -96.29524
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating38 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans10
Design loadOther
Structure length303 ft (92.4 m)
Longest span30 ft (9.2 m)
Deck width44 ft (13.4 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,180 (2020)
Projected traffic6,360 by 2033
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed24.2 mi (39 km)
TollOn a free road
National Highway SystemYes

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 US 79 over Navasota River Relief built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1981.

What condition is US 79 over Navasota River Relief 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 March 2023.

How much traffic does US 79 over Navasota River Relief carry?

About 3,180 vehicles per day (2020 count), of which roughly 23% are trucks.

How long is US 79 over Navasota River Relief?

The structure is 303 ft (92.4 m) long with a longest span of 30 ft (9.2 m) and a deck 44 ft wide.

Who owns US 79 over Navasota River Relief?

It is owned by the State Highway Agency.