US Bridges

Hackberry Road over Harlingen Main Canal

Fair

Cameron County, Texas · 0.5 MI W of FM 1479 · Structure no. 210310AA0681001

Built
1960
65 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
42 ft
1 main span
Daily traffic
297
2019 count
Owner
County
County Highway Agency

About this bridge

Hackberry Road over Harlingen Main Canal is a concrete stringer/multi-beam or girder carrying Hackberry Road over Harlingen Main Canal in Cameron County, Texas. It was built in 1960, so it is 65 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 297 vehicles a day, roughly 3% of them trucks, projected to reach 105 by 2042. The structure is 42 ft (12.8 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesHackberry Road
CrossesHarlingen Main Canal
Location0.5 MI W of FM 1479
RouteCounty Highway 0
CountyCameron County
StateTexas
Coordinates26.09733, -97.75311
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span40 ft (12.2 m)
Deck width25 ft (7.5 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic297 (2019)
Projected traffic105 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Hackberry Road over Harlingen Main Canal built?

It was built in 1960, making it 65 years old in 2025.

What condition is Hackberry Road over Harlingen Main Canal 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 Hackberry Road over Harlingen Main Canal carry?

About 297 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Hackberry Road over Harlingen Main Canal?

The structure is 42 ft (12.8 m) long with a longest span of 40 ft (12.2 m) and a deck 25 ft wide.

Who owns Hackberry Road over Harlingen Main Canal?

It is owned by the County Highway Agency.