US Bridges

US 183 / US 77A over Chisholm Crk

Fair

DeWitt County, Texas · 0.25 MI S of US 87 · Structure no. 130620015501011

Built
1939
86 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
36 ft
3 main spans
Daily traffic
2,698
2023 count
Owner
State
State Highway Agency

About this bridge

US 183 / US 77A over Chisholm Crk is a concrete culvert carrying US 183 / US 77A over Chisholm Crk in DeWitt County, Texas. It was built in 1939, 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 2,698 vehicles a day, roughly 21% of them trucks, projected to reach 7,590 by 2033. The structure is 36 ft (11 m) long and 74 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

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CarriesUS 183 / US 77A
CrossesChisholm Crk
Location0.25 MI S of US 87
RouteU.S. Route 183
CountyDeWitt County
StateTexas
Coordinates29.05965, -97.32796
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width74 ft (22.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,698 (2023)
Projected traffic7,590 by 2033
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 Chisholm Crk built?

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

What condition is US 183 / US 77A over Chisholm 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 Chisholm Crk carry?

About 2,698 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is US 183 / US 77A over Chisholm Crk?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m) and a deck 74 ft wide.

Who owns US 183 / US 77A over Chisholm Crk?

It is owned by the State Highway Agency.