US Bridges

IH 20 over Drainage Ditch

Fair

Nolan County, Texas · 6.30 MI E of FM 1856 · Structure no. 081770000603061

Built
1954
71 years old, rebuilt 1999
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
23 ft
3 main spans
Daily traffic
25,750
2020 count
Owner
State
State Highway Agency

About this bridge

IH 20 over Drainage Ditch is a concrete culvert carrying IH 20 over Drainage Ditch in Nolan County, Texas. It was built in 1954 and reconstructed in 1999, so it is 71 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 25,750 vehicles a day, roughly 37% of them trucks, projected to reach 27,250 by 2033. The structure is 23 ft (7 m) long.

Location

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CarriesIH 20
CrossesDrainage Ditch
Location6.30 MI E of FM 1856
RouteInterstate 20
CountyNolan County
StateTexas
Coordinates32.49006, -100.2302
Functional classRural Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length23 ft (7 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25,750 (2020)
Projected traffic27,250 by 2033
Trucks37%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 20 over Drainage Ditch built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1999.

What condition is IH 20 over Drainage Ditch 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 over Drainage Ditch carry?

About 25,750 vehicles per day (2020 count), of which roughly 37% are trucks.

How long is IH 20 over Drainage Ditch?

The structure is 23 ft (7 m) long with a longest span of 7 ft (2.1 m).

Who owns IH 20 over Drainage Ditch?

It is owned by the State Highway Agency.