US Bridges

FM 3143 (main St) over IH 40

Good

Gray County, Texas · 0.5 MI E of SH 273 · Structure no. 040910027511147

Built
1984
41 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
452 ft
4 main spans
Daily traffic
50
2023 count
Owner
State
State Highway Agency

About this bridge

FM 3143 (main St) over IH 40 is a prestressed concrete stringer/multi-beam or girder carrying FM 3143 (main St) over IH 40 in Gray County, Texas. It was built in 1984, so it is 41 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 46% of them trucks, projected to reach 880 by 2033. The structure is 452 ft (137.8 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM 3143 (main St)
CrossesIH 40
Location0.5 MI E of SH 273
RouteState Highway 3143
CountyGray County
StateTexas
Coordinates35.22628, -100.60009
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4 (+2 approach)
Design loadHS 20
Structure length452 ft (137.8 m)
Longest span96 ft (29.3 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic880 by 2033
Trucks46%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 3143 (main St) over IH 40 built?

It was built in 1984, making it 41 years old in 2025.

What condition is FM 3143 (main St) over IH 40 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does FM 3143 (main St) over IH 40 carry?

About 50 vehicles per day (2023 count), of which roughly 46% are trucks.

How long is FM 3143 (main St) over IH 40?

The structure is 452 ft (137.8 m) long with a longest span of 96 ft (29.3 m) and a deck 36 ft wide.

Who owns FM 3143 (main St) over IH 40?

It is owned by the State Highway Agency.