US Bridges

FM 315 over Mound Prairie Creek

Good

Anderson County, Texas · 0.9 MI N of FM 321 · Structure no. 100010089002011

Built
1959
66 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Concrete
Length
180 ft
6 main spans
Daily traffic
950
2023 count
Owner
State
State Highway Agency

About this bridge

FM 315 over Mound Prairie Creek is a concrete stringer/multi-beam or girder carrying FM 315 over Mound Prairie Creek in Anderson County, Texas. It was built in 1959, so it is 66 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 950 vehicles a day, roughly 11% of them trucks, projected to reach 1,070 by 2033. The structure is 180 ft (54.9 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesFM 315
CrossesMound Prairie Creek
Location0.9 MI N of FM 321
RouteState Highway 315
CountyAnderson County
StateTexas
Coordinates31.88264, -95.63134
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length180 ft (54.9 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic950 (2023)
Projected traffic1,070 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 315 over Mound Prairie Creek built?

It was built in 1959, making it 66 years old in 2025.

What condition is FM 315 over Mound Prairie Creek 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 2022.

How much traffic does FM 315 over Mound Prairie Creek carry?

About 950 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is FM 315 over Mound Prairie Creek?

The structure is 180 ft (54.9 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns FM 315 over Mound Prairie Creek?

It is owned by the State Highway Agency.