US Bridges

IH 20 Sfr over Cottonwood Creek Branch

Fair

Nolan County, Texas · 2.00 MI E of Mitchell C/L · Structure no. 081770000602005

Built
1925
100 years old, rebuilt 1967
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
70 ft
15 main spans
Daily traffic
90
2013 count
Owner
State
State Highway Agency

About this bridge

IH 20 Sfr over Cottonwood Creek Branch is a concrete culvert carrying IH 20 Sfr over Cottonwood Creek Branch in Nolan County, Texas. It was built in 1925 and reconstructed in 1967, so it is 100 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 90 vehicles a day, roughly 38% of them trucks, projected to reach 130 by 2033. The structure is 70 ft (21.3 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 20 Sfr
CrossesCottonwood Creek Branch
Location2.00 MI E of Mitchell C/L
RouteState Highway 20
CountyNolan County
StateTexas
Coordinates32.4166, -100.62898
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 inspectionMarch 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 rating39 US tons
Inventory rating23 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans15
Design loadH 15
Structure length70 ft (21.3 m)
Longest span4 ft (1.2 m)
Deck width45 ft (13.6 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2013)
Projected traffic130 by 2033
Trucks38%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$50,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 20 Sfr over Cottonwood Creek Branch built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1967.

What condition is IH 20 Sfr over Cottonwood Creek Branch 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 March 2023.

How much traffic does IH 20 Sfr over Cottonwood Creek Branch carry?

About 90 vehicles per day (2013 count), of which roughly 38% are trucks.

How long is IH 20 Sfr over Cottonwood Creek Branch?

The structure is 70 ft (21.3 m) long with a longest span of 4 ft (1.2 m) and a deck 45 ft wide.

Who owns IH 20 Sfr over Cottonwood Creek Branch?

It is owned by the State Highway Agency.