US Bridges

IH 20 Bus over Drain

Good

Martin County, Texas · 0.55 MI E of SH 137 · Structure no. 061560000516137

Built
1963
62 years old, rebuilt 2007
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
28 ft
5 main spans
Daily traffic
3,580
2013 count
Owner
State
State Highway Agency

About this bridge

IH 20 Bus over Drain is a concrete culvert carrying IH 20 Bus over Drain in Martin County, Texas. It was built in 1963 and reconstructed in 2007, so it is 62 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 3,580 vehicles a day, roughly 11% of them trucks, projected to reach 5,020 by 2033. The structure is 28 ft (8.5 m) long and 73 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 20 Bus
CrossesDrain
Location0.55 MI E of SH 137
RouteState Highway 20
StateTexas
Coordinates32.12812, -101.79241
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 spans5
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span5 ft (1.5 m)
Deck width73 ft (22.3 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,580 (2013)
Projected traffic5,020 by 2033
Trucks11%
Lanes on structure4
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 IH 20 Bus over Drain built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2007.

What condition is IH 20 Bus over Drain 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 February 2023.

How much traffic does IH 20 Bus over Drain carry?

About 3,580 vehicles per day (2013 count), of which roughly 11% are trucks.

How long is IH 20 Bus over Drain?

The structure is 28 ft (8.5 m) long with a longest span of 5 ft (1.5 m) and a deck 73 ft wide.

Who owns IH 20 Bus over Drain?

It is owned by the State Highway Agency.