US Bridges

FM 1847 over UP RR

Good

Cameron County, Texas · 0.5 MI S of FM 511 · Structure no. 210310180404004

Built
1996
29 years old, rebuilt 2007
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
190 ft
3 main spans
Daily traffic
9,678
2014 count
Owner
State
State Highway Agency

About this bridge

FM 1847 over UP RR is a prestressed concrete stringer/multi-beam or girder carrying FM 1847 over UP RR in Cameron County, Texas. It was built in 1996 and reconstructed in 2007, so it is 29 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 9,678 vehicles a day, roughly 1% of them trucks, projected to reach 16,290 by 2033. The structure is 190 ft (57.9 m) long and 85 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM 1847
CrossesUP RR
Location0.5 MI S of FM 511
RouteState Highway 1847
StateTexas
Coordinates26.00634, -97.48156
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.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length190 ft (57.9 m)
Longest span70 ft (21.3 m)
Deck width85 ft (25.9 m)
Roadway width67 ft (20.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,678 (2014)
Projected traffic16,290 by 2033
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM 1847 over UP RR built?

It was built in 1996, making it 29 years old in 2025. It was reconstructed in 2007.

What condition is FM 1847 over UP RR 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 March 2023.

How much traffic does FM 1847 over UP RR carry?

About 9,678 vehicles per day (2014 count), of which roughly 1% are trucks.

How long is FM 1847 over UP RR?

The structure is 190 ft (57.9 m) long with a longest span of 70 ft (21.3 m) and a deck 85 ft wide.

Who owns FM 1847 over UP RR?

It is owned by the State Highway Agency.