US Bridges

US 183/US 77A over 15 Mile Coleto Crk

Fair

DeWitt County, Texas · 1.57 MI S of FM 237 · Structure no. 130620015501017

Built
1939
86 years old, rebuilt 1996
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
600 ft
4 main spans
Daily traffic
1,833
2023 count
Owner
State
State Highway Agency

About this bridge

US 183/US 77A over 15 Mile Coleto Crk is a steel stringer/multi-beam or girder carrying US 183/US 77A over 15 Mile Coleto Crk in DeWitt County, Texas. It was built in 1939 and reconstructed in 1996, so it is 86 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 1,833 vehicles a day, roughly 21% of them trucks, projected to reach 5,250 by 2033. The structure is 600 ft (182.9 m) long and 46 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesUS 183/US 77A
Crosses15 Mile Coleto Crk
Location1.57 MI S of FM 237
RouteU.S. Route 183
StateTexas
Coordinates28.89785, -97.35531
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating29 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4 (+9 approach)
Design loadH 15
Structure length600 ft (182.9 m)
Longest span60 ft (18.3 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,833 (2023)
Projected traffic5,250 by 2033
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 US 183/US 77A over 15 Mile Coleto Crk built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1996.

What condition is US 183/US 77A over 15 Mile Coleto Crk 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 November 2024.

How much traffic does US 183/US 77A over 15 Mile Coleto Crk carry?

About 1,833 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 183/US 77A over 15 Mile Coleto Crk?

The structure is 600 ft (182.9 m) long with a longest span of 60 ft (18.3 m) and a deck 46 ft wide.

Who owns US 183/US 77A over 15 Mile Coleto Crk?

It is owned by the State Highway Agency.