US Bridges

SH 35 over Drainage Ditch

Fair

Brazoria County, Texas · 1.20 MI SW of FM 2917 · Structure no. 120200017803024

Built
1937
88 years old, rebuilt 1958
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete
Length
90 ft
3 main spans
Daily traffic
13,798
2023 count
Owner
State
State Highway Agency

About this bridge

SH 35 over Drainage Ditch is a concrete tee beam carrying SH 35 over Drainage Ditch in Brazoria County, Texas. It was built in 1937 and reconstructed in 1958, so it is 88 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 13,798 vehicles a day, roughly 6% of them trucks, projected to reach 13,950 by 2033. The structure is 90 ft (27.4 m) long and 46 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesSH 35
CrossesDrainage Ditch
Location1.20 MI SW of FM 2917
RouteState Highway 35
CountyBrazoria County
StateTexas
Coordinates29.32708, -95.28989
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width46 ft (14 m)
Roadway width43 ft (13.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,798 (2023)
Projected traffic13,950 by 2033
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$99,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 35 over Drainage Ditch built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1958.

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 September 2024.

How much traffic does SH 35 over Drainage Ditch carry?

About 13,798 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 35 over Drainage Ditch?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 46 ft wide.

Who owns SH 35 over Drainage Ditch?

It is owned by the State Highway Agency.