US Bridges

IH 20 Sfr over Colorado River

Good

Mitchell County, Texas · 2.1 MI W of SH 208 · Structure no. 081680000508234

Built
1983
42 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
360 ft
9 main spans
Daily traffic
1,690
2013 count
Owner
State
State Highway Agency

About this bridge

IH 20 Sfr over Colorado River is a concrete stringer/multi-beam or girder carrying IH 20 Sfr over Colorado River in Mitchell County, Texas. It was built in 1983, so it is 42 years old, younger 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 1,690 vehicles a day, roughly 41% of them trucks, projected to reach 2,360 by 2033. The structure is 360 ft (109.7 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 20 Sfr
CrossesColorado River
Location2.1 MI W of SH 208
RouteInterstate 20
CountyMitchell County
StateTexas
Coordinates32.39888, -100.89372
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length360 ft (109.7 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,690 (2013)
Projected traffic2,360 by 2033
Trucks41%
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.4 million
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 20 Sfr over Colorado River built?

It was built in 1983, making it 42 years old in 2025.

What condition is IH 20 Sfr over Colorado River 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 May 2023.

How much traffic does IH 20 Sfr over Colorado River carry?

About 1,690 vehicles per day (2013 count), of which roughly 41% are trucks.

How long is IH 20 Sfr over Colorado River?

The structure is 360 ft (109.7 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns IH 20 Sfr over Colorado River?

It is owned by the State Highway Agency.