US Bridges

FM 1171 over Drain

Good

Denton County, Texas · 1.30 MI E of IH 35E · Structure no. 180610019604424

Built
2002
23 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
30 ft
4 main spans
Daily traffic
9,016
2019 count
Owner
State
State Highway Agency

About this bridge

FM 1171 over Drain is a concrete culvert carrying FM 1171 over Drain in Denton County, Texas. It was built in 2002, so it is 23 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 9,016 vehicles a day, roughly 9% of them trucks, projected to reach 25,080 by 2028. The structure is 30 ft (9.1 m) long and 444 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFM 1171
CrossesDrain
Location1.30 MI E of IH 35E
RouteState Highway 1171
StateTexas
Coordinates33.04633, -96.98666
Functional classUrban Minor Arterial

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span6 ft (1.8 m)
Deck width444 ft (135.3 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,016 (2019)
Projected traffic25,080 by 2028
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 1171 over Drain built?

It was built in 2002, making it 23 years old in 2025.

What condition is FM 1171 over Drain 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 June 2024.

How much traffic does FM 1171 over Drain carry?

About 9,016 vehicles per day (2019 count), of which roughly 9% are trucks.

How long is FM 1171 over Drain?

The structure is 30 ft (9.1 m) long with a longest span of 6 ft (1.8 m) and a deck 444 ft wide.

Who owns FM 1171 over Drain?

It is owned by the State Highway Agency.