US Bridges

SH 185 over Drainage Ditch

Good

Calhoun County, Texas · 1.44 MI E of SH 35 · Structure no. 130290043201010

Built
1956
69 years old, rebuilt 2020
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,925
2023 count
Owner
State
State Highway Agency

About this bridge

SH 185 over Drainage Ditch is a concrete culvert carrying SH 185 over Drainage Ditch in Calhoun County, Texas. It was built in 1956 and reconstructed in 2020, so it is 69 years old, older 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 1,925 vehicles a day, roughly 13% of them trucks, projected to reach 2,830 by 2033. The structure is 21 ft (6.3 m) long and 90 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSH 185
CrossesDrainage Ditch
Location1.44 MI E of SH 35
RouteState Highway 185
StateTexas
Coordinates28.50843, -96.77911
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width90 ft (27.5 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,925 (2023)
Projected traffic2,830 by 2033
Trucks13%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 1956, making it 69 years old in 2025. It was reconstructed in 2020.

What condition is SH 185 over Drainage Ditch 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 December 2024.

How much traffic does SH 185 over Drainage Ditch carry?

About 1,925 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SH 185 over Drainage Ditch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 90 ft wide.

Who owns SH 185 over Drainage Ditch?

It is owned by the State Highway Agency.