US Bridges

Old Port Isabel RD over Main Drain Ditch #1

Fair

Cameron County, Texas · 0.7 MI NE of FM 802 · Structure no. 210310C01405001

Built
2000
25 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete
Length
35 ft
3 main spans
Daily traffic
2,905
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Port Isabel RD over Main Drain Ditch #1 is a concrete culvert carrying Old Port Isabel RD over Main Drain Ditch #1 in Cameron County, Texas. It was built in 2000, so it is 25 years old, younger 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 2,905 vehicles a day, roughly 4% of them trucks, projected to reach 8,816 by 2042. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld Port Isabel RD
CrossesMain Drain Ditch #1
Location0.7 MI NE of FM 802
RouteCity Street 0
StateTexas
Coordinates25.95806, -97.46007
Functional classUrban Local

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 spans3
Design loadHS 20
Structure length35 ft (10.7 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 traffic2,905 (2022)
Projected traffic8,816 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Main Drain Ditch #1 built?

It was built in 2000, making it 25 years old in 2025.

What condition is Old Port Isabel RD over Main Drain Ditch #1 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 March 2024.

How much traffic does Old Port Isabel RD over Main Drain Ditch #1 carry?

About 2,905 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Old Port Isabel RD over Main Drain Ditch #1?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m).

Who owns Old Port Isabel RD over Main Drain Ditch #1?

It is owned by the City or Municipal Highway Agency.