US Bridges

IH 20 over UPRR & FM 644 (n)

Fair

Mitchell County, Texas · 8.6 MI E of SH 208 (s) · Structure no. 081680000601079

Built
1956
69 years old, rebuilt 1979
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
758 ft
18 main spans
Daily traffic
17,977
2020 count
Owner
State
State Highway Agency

About this bridge

IH 20 over UPRR & FM 644 (n) is a steel continuous stringer/multi-beam or girder carrying IH 20 over UPRR & FM 644 (n) in Mitchell County, Texas. It was built in 1956 and reconstructed in 1979, so it is 69 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 17,977 vehicles a day, roughly 43% of them trucks, projected to reach 18,710 by 2033. The structure is 758 ft (231 m) long and 80 ft wide.

Location

Open in Google Maps
CarriesIH 20
CrossesUPRR & FM 644 (n)
Location8.6 MI E of SH 208 (s)
RouteInterstate 20
CountyMitchell County
StateTexas
Coordinates32.41376, -100.70608
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
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 spans18
Design loadHS 20
Structure length758 ft (231 m)
Longest span42 ft (12.8 m)
Deck width80 ft (24.5 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,977 (2020)
Projected traffic18,710 by 2033
Trucks43%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 20 over UPRR & FM 644 (n) built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1979.

What condition is IH 20 over UPRR & FM 644 (n) 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 IH 20 over UPRR & FM 644 (n) carry?

About 17,977 vehicles per day (2020 count), of which roughly 43% are trucks.

How long is IH 20 over UPRR & FM 644 (n)?

The structure is 758 ft (231 m) long with a longest span of 42 ft (12.8 m) and a deck 80 ft wide.

Who owns IH 20 over UPRR & FM 644 (n)?

It is owned by the State Highway Agency.