US Bridges

Calton RD/IH35 Row over Drainage Ditch

Fair

Webb County, Texas · 0.90 MI N of US 59 · Structure no. 222400001806081

Built
1962
63 years old, rebuilt 1984
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
24 ft
4 main spans
Daily traffic
24,825
2023 count
Owner
State
State Highway Agency

About this bridge

Calton RD/IH35 Row over Drainage Ditch is a concrete culvert carrying Calton RD/IH35 Row over Drainage Ditch in Webb County, Texas. It was built in 1962 and reconstructed in 1984, so it is 63 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 24,825 vehicles a day, roughly 4% of them trucks, projected to reach 37,238 by 2042. The structure is 24 ft (7.3 m) long and 148 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCalton RD/IH35 Row
CrossesDrainage Ditch
Location0.90 MI N of US 59
RouteInterstate 35
CountyWebb County
StateTexas
Coordinates27.54409, -99.50262
Functional classUrban Principal Arterial - Interstate

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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
DeckConcrete, cast-in-place
Main spans4
Design loadOther
Structure length24 ft (7.3 m)
Longest span5 ft (1.5 m)
Deck width148 ft (45.2 m)
Roadway width103 ft (31.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,825 (2023)
Projected traffic37,238 by 2042
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Calton RD/IH35 Row over Drainage Ditch built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1984.

What condition is Calton RD/IH35 Row 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 October 2024.

How much traffic does Calton RD/IH35 Row over Drainage Ditch carry?

About 24,825 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Calton RD/IH35 Row over Drainage Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 5 ft (1.5 m) and a deck 148 ft wide.

Who owns Calton RD/IH35 Row over Drainage Ditch?

It is owned by the State Highway Agency.