US Bridges

Old Port Isabel RD over Outfall Channel #3

Good

Cameron County, Texas · 0.15 MI NE of Toll 550 · Structure no. 210310AA4201001

Built
2010
15 years old, rebuilt 2012
Condition
Good
inspected March 2024
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
339
2024 count
Owner
County
County Highway Agency

About this bridge

Old Port Isabel RD over Outfall Channel #3 is a concrete culvert carrying Old Port Isabel RD over Outfall Channel #3 in Cameron County, Texas. It was built in 2010 and reconstructed in 2012, so it is 15 years old, younger 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 339 vehicles a day, roughly 3% of them trucks, projected to reach 158 by 2042. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesOld Port Isabel RD
CrossesOutfall Channel #3
Location0.15 MI NE of Toll 550
RouteCounty Highway 0
StateTexas
Coordinates25.98283, -97.4393
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic339 (2024)
Projected traffic158 by 2042
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Port Isabel RD over Outfall Channel #3 built?

It was built in 2010, making it 15 years old in 2025. It was reconstructed in 2012.

What condition is Old Port Isabel RD over Outfall Channel #3 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 2024.

How much traffic does Old Port Isabel RD over Outfall Channel #3 carry?

About 339 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Old Port Isabel RD over Outfall Channel #3?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m).

Who owns Old Port Isabel RD over Outfall Channel #3?

It is owned by the County Highway Agency.