US Bridges

SH 7 over Navasota River Rel No 1

Fair

Robertson County, Texas · 4.7 MI E of FM 979 · Structure no. 171980038204019

Built
1956
69 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
455 ft
15 main spans
Daily traffic
3,572
2023 count
Owner
State
State Highway Agency

About this bridge

SH 7 over Navasota River Rel No 1 is a concrete stringer/multi-beam or girder carrying SH 7 over Navasota River Rel No 1 in Robertson County, Texas. It was built in 1956, so it is 69 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 5 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 3,572 vehicles a day, roughly 24% of them trucks, projected to reach 5,001 by 2042. The structure is 455 ft (138.7 m) long and 31 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesSH 7
CrossesNavasota River Rel No 1
Location4.7 MI E of FM 979
RouteState Highway 7
CountyRobertson County
StateTexas
Coordinates31.25521, -96.33738
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans15
Design loadOther
Structure length455 ft (138.7 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,572 (2023)
Projected traffic5,001 by 2042
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed39.8 mi (64 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$31,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 7 over Navasota River Rel No 1 built?

It was built in 1956, making it 69 years old in 2025.

What condition is SH 7 over Navasota River Rel No 1 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 SH 7 over Navasota River Rel No 1 carry?

About 3,572 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is SH 7 over Navasota River Rel No 1?

The structure is 455 ft (138.7 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns SH 7 over Navasota River Rel No 1?

It is owned by the State Highway Agency.