US Bridges

SH 70 over IH 40

Fair

Gray County, Texas · 6.8 MI E of Carson Cl · Structure no. 040910027507108

Built
1974
51 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
310 ft
2 main spans
Daily traffic
592
2023 count
Owner
State
State Highway Agency

About this bridge

SH 70 over IH 40 is a prestressed concrete stringer/multi-beam or girder carrying SH 70 over IH 40 in Gray County, Texas. It was built in 1974, so it is 51 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 592 vehicles a day, roughly 58% of them trucks, projected to reach 1,560 by 2033. The structure is 310 ft (94.5 m) long and 62 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSH 70
CrossesIH 40
Location6.8 MI E of Carson Cl
RouteState Highway 70
CountyGray County
StateTexas
Coordinates35.18302, -100.97136
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.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length310 ft (94.5 m)
Longest span95 ft (29 m)
Deck width62 ft (19 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic592 (2023)
Projected traffic1,560 by 2033
Trucks58%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 70 over IH 40 built?

It was built in 1974, making it 51 years old in 2025.

What condition is SH 70 over IH 40 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 70 over IH 40 carry?

About 592 vehicles per day (2023 count), of which roughly 58% are trucks.

How long is SH 70 over IH 40?

The structure is 310 ft (94.5 m) long with a longest span of 95 ft (29 m) and a deck 62 ft wide.

Who owns SH 70 over IH 40?

It is owned by the State Highway Agency.