US Bridges

FM 670/BUS 20 over Cherry Creek

Fair

Mitchell County, Texas · 0.4 MI W of Westbrook · Structure no. 081680000511046

Built
1957
68 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
278
2023 count
Owner
State
State Highway Agency

About this bridge

FM 670/BUS 20 over Cherry Creek is a concrete culvert carrying FM 670/BUS 20 over Cherry Creek in Mitchell County, Texas. It was built in 1957, so it is 68 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 278 vehicles a day, roughly 23% of them trucks, projected to reach 1,070 by 2033. The structure is 30 ft (9.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesFM 670/BUS 20
CrossesCherry Creek
Location0.4 MI W of Westbrook
RouteState Highway 20
CountyMitchell County
StateTexas
Coordinates32.35265, -101.01948
Functional classRural Major 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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
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 loadHS 20
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width45 ft (13.8 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic278 (2023)
Projected traffic1,070 by 2033
Trucks23%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 670/BUS 20 over Cherry Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is FM 670/BUS 20 over Cherry Creek 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 May 2023.

How much traffic does FM 670/BUS 20 over Cherry Creek carry?

About 278 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is FM 670/BUS 20 over Cherry Creek?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m) and a deck 45 ft wide.

Who owns FM 670/BUS 20 over Cherry Creek?

It is owned by the State Highway Agency.