US Bridges

FM 1171 over Graham Branch

Good

Denton County, Texas · 1.3 Mi. E of IH 35W · Structure no. 180610131101117

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
266 ft
3 main spans
Daily traffic
12,704
2022 count
Owner
State
State Highway Agency

About this bridge

FM 1171 over Graham Branch is a prestressed concrete stringer/multi-beam or girder carrying FM 1171 over Graham Branch in Denton County, Texas. It was built in 2015, so it is 10 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 12,704 vehicles a day, roughly 20% of them trucks, projected to reach 14,850 by 2031. The structure is 266 ft (81.1 m) long and 111 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesFM 1171
CrossesGraham Branch
Location1.3 Mi. E of IH 35W
RouteState Highway 1171
CountyDenton County
StateTexas
Coordinates33.06145, -97.22044
Functional classUrban Other Principal Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: 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 spans3
Design loadHL 93
Structure length266 ft (81.1 m)
Longest span100 ft (30.5 m)
Deck width111 ft (33.9 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,704 (2022)
Projected traffic14,850 by 2031
Trucks20%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemYes

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 Graham Branch built?

It was built in 2015, making it 10 years old in 2025.

What condition is FM 1171 over Graham Branch 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 September 2023.

How much traffic does FM 1171 over Graham Branch carry?

About 12,704 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is FM 1171 over Graham Branch?

The structure is 266 ft (81.1 m) long with a longest span of 100 ft (30.5 m) and a deck 111 ft wide.

Who owns FM 1171 over Graham Branch?

It is owned by the State Highway Agency.