US Bridges

Lp 171 over BNSF RR

Fair

Gray County, Texas · 1.3 MI N of US 60 · Structure no. 040910240301001

Built
1973
52 years old
Condition
Fair
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
430 ft
5 main spans
Daily traffic
2,241
2023 count
Owner
State
State Highway Agency

About this bridge

Lp 171 over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying Lp 171 over BNSF RR in Gray County, Texas. It was built in 1973, so it is 52 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 2,241 vehicles a day, roughly 16% of them trucks, projected to reach 2,730 by 2033. The structure is 430 ft (131.1 m) long and 50 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesLp 171
CrossesBNSF RR
Location1.3 MI N of US 60
RouteState Highway 171
CountyGray County
StateTexas
Coordinates35.54758, -100.9313
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5 (+1 approach)
Design loadHS 20
Structure length430 ft (131.1 m)
Longest span80 ft (24.4 m)
Deck width50 ft (15.3 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,241 (2023)
Projected traffic2,730 by 2033
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.7 mi (14 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 Lp 171 over BNSF RR built?

It was built in 1973, making it 52 years old in 2025.

What condition is Lp 171 over BNSF RR 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 January 2025.

How much traffic does Lp 171 over BNSF RR carry?

About 2,241 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is Lp 171 over BNSF RR?

The structure is 430 ft (131.1 m) long with a longest span of 80 ft (24.4 m) and a deck 50 ft wide.

Who owns Lp 171 over BNSF RR?

It is owned by the State Highway Agency.