US Bridges

Amaro RD (cr 340) over East Main Drain

Fair

Willacy County, Texas · 0.5 MI N of JCT FM 1762 · Structure no. 212450AA0172001

Built
1975
50 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
121 ft
4 main spans
Daily traffic
10
2019 count
Owner
County
County Highway Agency

About this bridge

Amaro RD (cr 340) over East Main Drain is a concrete stringer/multi-beam or girder carrying Amaro RD (cr 340) over East Main Drain in Willacy County, Texas. It was built in 1975, so it is 50 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 10 vehicles a day, roughly 3% of them trucks, projected to reach 38 by 2042. The structure is 121 ft (36.9 m) long and 25 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesAmaro RD (cr 340)
CrossesEast Main Drain
Location0.5 MI N of JCT FM 1762
RouteCounty Highway 340
CountyWillacy County
StateTexas
Coordinates26.5186, -97.72055
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length121 ft (36.9 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic38 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Amaro RD (cr 340) over East Main Drain built?

It was built in 1975, making it 50 years old in 2025.

What condition is Amaro RD (cr 340) over East Main Drain 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 April 2024.

How much traffic does Amaro RD (cr 340) over East Main Drain carry?

About 10 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Amaro RD (cr 340) over East Main Drain?

The structure is 121 ft (36.9 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns Amaro RD (cr 340) over East Main Drain?

It is owned by the County Highway Agency.