US Bridges

SH 30 over Navasota River Rel No 1

Fair

Brazos County, Texas · 5.7 MI SE of FM 158 · Structure no. 170210021203012

Built
1958
67 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
364 ft
12 main spans
Daily traffic
9,908
2022 count
Owner
State
State Highway Agency

About this bridge

SH 30 over Navasota River Rel No 1 is a concrete stringer/multi-beam or girder carrying SH 30 over Navasota River Rel No 1 in Brazos County, Texas. It was built in 1958, 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 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 9,908 vehicles a day, roughly 6% of them trucks, projected to reach 11,470 by 2033. The structure is 364 ft (110.9 m) long and 31 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesSH 30
CrossesNavasota River Rel No 1
Location5.7 MI SE of FM 158
RouteState Highway 30
CountyBrazos County
StateTexas
Coordinates30.61664, -96.1974
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionFebruary 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans12
Design loadH 20
Structure length364 ft (110.9 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,908 (2022)
Projected traffic11,470 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed42.3 mi (68 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$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 30 over Navasota River Rel No 1 built?

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

What condition is SH 30 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 February 2023.

How much traffic does SH 30 over Navasota River Rel No 1 carry?

About 9,908 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SH 30 over Navasota River Rel No 1?

The structure is 364 ft (110.9 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns SH 30 over Navasota River Rel No 1?

It is owned by the State Highway Agency.