US Bridges

FM 645 over Spring Creek

Good

Anderson County, Texas · 1.3 MI S of FM 321 · Structure no. 100010170701001

Built
1952
73 years old
Condition
Good
inspected December 2022
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
1,558
2020 count
Owner
State
State Highway Agency

About this bridge

FM 645 over Spring Creek is a concrete culvert carrying FM 645 over Spring Creek in Anderson County, Texas. It was built in 1952, so it is 73 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 1,558 vehicles a day, roughly 11% of them trucks, projected to reach 2,230 by 2033. The structure is 33 ft (10.1 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 645
CrossesSpring Creek
Location1.3 MI S of FM 321
RouteState Highway 645
CountyAnderson County
StateTexas
Coordinates31.818, -95.83453
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,558 (2020)
Projected traffic2,230 by 2033
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 645 over Spring Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is FM 645 over Spring 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 645 over Spring Creek carry?

About 1,558 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is FM 645 over Spring Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns FM 645 over Spring Creek?

It is owned by the State Highway Agency.