US Bridges

FM 1991 over Trib N Bosque River

Good

Bosque County, Texas · 4.2 MI S Int SH 22 · Structure no. 090180038604012

Built
1956
69 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
460
2023 count
Owner
State
State Highway Agency

About this bridge

FM 1991 over Trib N Bosque River is a concrete culvert carrying FM 1991 over Trib N Bosque River in Bosque County, Texas. It was built in 1956, so it is 69 years old, older 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 460 vehicles a day, roughly 19% of them trucks, projected to reach 727 by 2042. The structure is 22 ft (6.6 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1991
CrossesTrib N Bosque River
Location4.2 MI S Int SH 22
RouteState Highway 1991
StateTexas
Coordinates31.8737, -97.6066
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length22 ft (6.6 m)
Longest span10 ft (3 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2023)
Projected traffic727 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$261,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1991 over Trib N Bosque River built?

It was built in 1956, making it 69 years old in 2025.

What condition is FM 1991 over Trib N Bosque River 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 December 2024.

How much traffic does FM 1991 over Trib N Bosque River carry?

About 460 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is FM 1991 over Trib N Bosque River?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns FM 1991 over Trib N Bosque River?

It is owned by the State Highway Agency.