US Bridges

IH 20 Bus (us 80) over IH 20

Fair

Martin County, Texas · 2.55 MI E of SH 137 · Structure no. 061560000504209

Built
1968
57 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
310 ft
4 main spans
Daily traffic
1,350
2013 count
Owner
State
State Highway Agency

About this bridge

IH 20 Bus (us 80) over IH 20 is a steel continuous stringer/multi-beam or girder carrying IH 20 Bus (us 80) over IH 20 in Martin County, Texas. It was built in 1968, so it is 57 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 5 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 1,350 vehicles a day, roughly 10% of them trucks, projected to reach 1,890 by 2033. The structure is 310 ft (94.5 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesIH 20 Bus (us 80)
CrossesIH 20
Location2.55 MI E of SH 137
RouteState Highway 20
CountyMartin County
StateTexas
Coordinates32.1401, -101.76335
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length310 ft (94.5 m)
Longest span90 ft (27.4 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,350 (2013)
Projected traffic1,890 by 2033
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 20 Bus (us 80) over IH 20 built?

It was built in 1968, making it 57 years old in 2025.

What condition is IH 20 Bus (us 80) over IH 20 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 February 2023.

How much traffic does IH 20 Bus (us 80) over IH 20 carry?

About 1,350 vehicles per day (2013 count), of which roughly 10% are trucks.

How long is IH 20 Bus (us 80) over IH 20?

The structure is 310 ft (94.5 m) long with a longest span of 90 ft (27.4 m) and a deck 35 ft wide.

Who owns IH 20 Bus (us 80) over IH 20?

It is owned by the State Highway Agency.