US Bridges

CR 1178 (cr 100) over Drainage Ditch

Fair

San Patricio County, Texas · 2.00 MI NW of CR 3261 · Structure no. 162050AA0369002

Built
1940
85 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
24
2021 count
Owner
County
County Highway Agency

About this bridge

CR 1178 (cr 100) over Drainage Ditch is a concrete culvert carrying CR 1178 (cr 100) over Drainage Ditch in San Patricio County, Texas. It was built in 1940, so it is 85 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 24 vehicles a day, projected to reach 34 by 2041. The structure is 30 ft (9.1 m) long and 22 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCR 1178 (cr 100)
CrossesDrainage Ditch
Location2.00 MI NW of CR 3261
RouteCounty Highway 1178
CountySan Patricio County
StateTexas
Coordinates28.01777, -97.42442
Functional classRural Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width22 ft (6.6 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2021)
Projected traffic34 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$41,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 1178 (cr 100) over Drainage Ditch built?

It was built in 1940, making it 85 years old in 2025.

What condition is CR 1178 (cr 100) over Drainage Ditch 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 June 2023.

How much traffic does CR 1178 (cr 100) over Drainage Ditch carry?

About 24 vehicles per day (2021 count).

How long is CR 1178 (cr 100) over Drainage Ditch?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 22 ft wide.

Who owns CR 1178 (cr 100) over Drainage Ditch?

It is owned by the County Highway Agency.