US Bridges

US 79 over Navasota River Relief

Fair

Robertson County, Texas · 0.4 MI W of Navasota Rive · Structure no. 171980020502044

Built
1959
66 years old, rebuilt 1981
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
212 ft
7 main spans
Daily traffic
3,139
2023 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 Robertson 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 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 3,139 vehicles a day, roughly 44% of them trucks, projected to reach 4,395 by 2042. The structure is 212 ft (64.6 m) long and 44 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesUS 79
CrossesNavasota River Relief
Location0.4 MI W of Navasota Rive
RouteU.S. Route 79
StateTexas
Coordinates31.16656, -96.30447
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 rating59 US tons
Inventory rating34.9 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans7
Design loadOther
Structure length212 ft (64.6 m)
Longest span30 ft (9.1 m)
Deck width44 ft (13.4 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,139 (2023)
Projected traffic4,395 by 2042
Trucks44%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed21.7 mi (35 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 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 2024.

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

About 3,139 vehicles per day (2023 count), of which roughly 44% are trucks.

How long is US 79 over Navasota River Relief?

The structure is 212 ft (64.6 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.

Who owns US 79 over Navasota River Relief?

It is owned by the State Highway Agency.