US Bridges

FM 1840 over IH 30

Fair

Bowie County, Texas · 2.30 MI SW of SH 98 · Structure no. 190190061005157

Built
1971
54 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
380 ft
2 main spans
Daily traffic
501
2022 count
Owner
State
State Highway Agency

About this bridge

FM 1840 over IH 30 is a prestressed concrete stringer/multi-beam or girder carrying FM 1840 over IH 30 in Bowie County, Texas. It was built in 1971, so it is 54 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 501 vehicles a day, roughly 12% of them trucks, projected to reach 810 by 2033. The structure is 380 ft (115.8 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1840
CrossesIH 30
Location2.30 MI SW of SH 98
RouteState Highway 1840
StateTexas
Coordinates33.44892, -94.5059
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadH 15
Structure length380 ft (115.8 m)
Longest span105 ft (32.1 m)
Deck width35 ft (10.6 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic501 (2022)
Projected traffic810 by 2033
Trucks12%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 1840 over IH 30 built?

It was built in 1971, making it 54 years old in 2025.

What condition is FM 1840 over IH 30 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 July 2024.

How much traffic does FM 1840 over IH 30 carry?

About 501 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is FM 1840 over IH 30?

The structure is 380 ft (115.8 m) long with a longest span of 105 ft (32.1 m) and a deck 35 ft wide.

Who owns FM 1840 over IH 30?

It is owned by the State Highway Agency.