US Bridges

SH 7 over Trinity River Relief

Fair

Houston County, Texas · 4.0 MI W of FM 132 · Structure no. 111140033502020

Built
1957
68 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
607 ft
20 main spans
Daily traffic
2,084
2018 count
Owner
State
State Highway Agency

About this bridge

SH 7 over Trinity River Relief is a concrete stringer/multi-beam or girder carrying SH 7 over Trinity River Relief in Houston County, Texas. It was built in 1957, so it is 68 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 2,084 vehicles a day, roughly 22% of them trucks, projected to reach 4,120 by 2033. The structure is 607 ft (185 m) long and 31 ft wide. If it were closed, the detour would be 47.2 mi (76 km).

Location

Open in Google Maps
CarriesSH 7
CrossesTrinity River Relief
Location4.0 MI W of FM 132
RouteState Highway 7
CountyHouston County
StateTexas
Coordinates31.3217, -95.6338
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than 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 spans20
Design loadOther
Structure length607 ft (185 m)
Longest span30 ft (9.1 m)
Deck width31 ft (9.5 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,084 (2018)
Projected traffic4,120 by 2033
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed47.2 mi (76 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$421,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 7 over Trinity River Relief built?

It was built in 1957, making it 68 years old in 2025.

What condition is SH 7 over Trinity 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 June 2024.

How much traffic does SH 7 over Trinity River Relief carry?

About 2,084 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is SH 7 over Trinity River Relief?

The structure is 607 ft (185 m) long with a longest span of 30 ft (9.1 m) and a deck 31 ft wide.

Who owns SH 7 over Trinity River Relief?

It is owned by the State Highway Agency.