US Bridges

SH 35 over Drainage Ditch

Fair

San Patricio County, Texas · 0.70 MI W of FM 3512 · Structure no. 162050018006029

Built
1926
99 years old, rebuilt 1984
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
23 ft
4 main spans
Daily traffic
22,697
2022 count
Owner
State
State Highway Agency

About this bridge

SH 35 over Drainage Ditch is a concrete culvert carrying SH 35 over Drainage Ditch in San Patricio County, Texas. It was built in 1926 and reconstructed in 1984, so it is 99 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 5 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 22,697 vehicles a day, roughly 6% of them trucks, projected to reach 31,776 by 2042. The structure is 23 ft (7 m) long and 185 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSH 35
CrossesDrainage Ditch
Location0.70 MI W of FM 3512
RouteState Highway 35
CountySan Patricio County
StateTexas
Coordinates27.92754, -97.22886
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadH 15
Structure length23 ft (7 m)
Longest span5 ft (1.5 m)
Deck width185 ft (56.5 m)
Roadway width77 ft (23.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,697 (2022)
Projected traffic31,776 by 2042
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 35 over Drainage Ditch built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1984.

What condition is SH 35 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 April 2024.

How much traffic does SH 35 over Drainage Ditch carry?

About 22,697 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is SH 35 over Drainage Ditch?

The structure is 23 ft (7 m) long with a longest span of 5 ft (1.5 m) and a deck 185 ft wide.

Who owns SH 35 over Drainage Ditch?

It is owned by the State Highway Agency.