US Bridges

Alamo RD over N Main Drainage Ditch

Fair

Hidalgo County, Texas · 1.40 MI N of FM 1925 · Structure no. 211090AA0181001

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
123 ft
4 main spans
Daily traffic
4,446
2024 count
Owner
County
County Highway Agency

About this bridge

Alamo RD over N Main Drainage Ditch is a concrete stringer/multi-beam or girder carrying Alamo RD over N Main Drainage Ditch in Hidalgo County, Texas. It was built in 1981, so it is 44 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 4,446 vehicles a day, roughly 3% of them trucks, projected to reach 260 by 2030. The structure is 123 ft (37.6 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesAlamo RD
CrossesN Main Drainage Ditch
Location1.40 MI N of FM 1925
RouteCounty Highway 0
CountyHidalgo County
StateTexas
Coordinates26.34726, -98.09607
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length123 ft (37.6 m)
Longest span30 ft (9.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,446 (2024)
Projected traffic260 by 2030
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Alamo RD over N Main Drainage Ditch built?

It was built in 1981, making it 44 years old in 2025.

What condition is Alamo RD over N Main 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 June 2024.

How much traffic does Alamo RD over N Main Drainage Ditch carry?

About 4,446 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Alamo RD over N Main Drainage Ditch?

The structure is 123 ft (37.6 m) long with a longest span of 30 ft (9.2 m) and a deck 28 ft wide.

Who owns Alamo RD over N Main Drainage Ditch?

It is owned by the County Highway Agency.