US Bridges

SH 185 over Drainage Ditch

Fair

Calhoun County, Texas · 1.70 MI NW of SH 35 · Structure no. 130290043201009

Built
1950
75 years old, rebuilt 1979
Condition
Fair
inspected December 2024
Type
Slab
Concrete
Length
75 ft
3 main spans
Daily traffic
3,421
2023 count
Owner
State
State Highway Agency

About this bridge

SH 185 over Drainage Ditch is a concrete slab carrying SH 185 over Drainage Ditch in Calhoun County, Texas. It was built in 1950 and reconstructed in 1979, so it is 75 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 3,421 vehicles a day, roughly 9% of them trucks, projected to reach 4,230 by 2033. The structure is 75 ft (22.9 m) long and 42 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesSH 185
CrossesDrainage Ditch
Location1.70 MI NW of SH 35
RouteState Highway 185
StateTexas
Coordinates28.54719, -96.80572
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 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 rating55 US tons
Inventory rating34 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length75 ft (22.9 m)
Longest span25 ft (7.6 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,421 (2023)
Projected traffic4,230 by 2033
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 SH 185 over Drainage Ditch built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1979.

What condition is SH 185 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 December 2024.

How much traffic does SH 185 over Drainage Ditch carry?

About 3,421 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is SH 185 over Drainage Ditch?

The structure is 75 ft (22.9 m) long with a longest span of 25 ft (7.6 m) and a deck 42 ft wide.

Who owns SH 185 over Drainage Ditch?

It is owned by the State Highway Agency.