US Bridges

SH 4 over Drainage Ditch

Good

Cameron County, Texas · 0.40 MI SW of SH 48 · Structure no. 210310150401003

Built
1956
69 years old, rebuilt 1980
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
26,894
2024 count
Owner
State
State Highway Agency

About this bridge

SH 4 over Drainage Ditch is a concrete culvert carrying SH 4 over Drainage Ditch in Cameron County, Texas. It was built in 1956 and reconstructed in 1980, 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 26,894 vehicles a day, roughly 6% of them trucks, projected to reach 41,550 by 2033. The structure is 33 ft (10.1 m) long and 98 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 4
CrossesDrainage Ditch
Location0.40 MI SW of SH 48
RouteState Highway 4
StateTexas
Coordinates25.9165, -97.47073
Functional classUrban Other Principal Arterial

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 inspectionMarch 2023
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 spans3
Design loadOther
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width98 ft (30 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,894 (2024)
Projected traffic41,550 by 2033
Trucks6%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 4 over Drainage Ditch built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1980.

What condition is SH 4 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 March 2023.

How much traffic does SH 4 over Drainage Ditch carry?

About 26,894 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SH 4 over Drainage Ditch?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 98 ft wide.

Who owns SH 4 over Drainage Ditch?

It is owned by the State Highway Agency.