US Bridges

FM 1015 over Delta Lake Drain

Fair

Willacy County, Texas · 1.3 MI S of FM 490 · Structure no. 212450122801013

Built
1998
27 years old
Condition
Fair
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
128 ft
2 main spans
Daily traffic
1,058
2024 count
Owner
State
State Highway Agency

About this bridge

FM 1015 over Delta Lake Drain is a prestressed concrete box beam or girders - multiple carrying FM 1015 over Delta Lake Drain in Willacy County, Texas. It was built in 1998, so it is 27 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 1,058 vehicles a day, roughly 27% of them trucks, projected to reach 1,310 by 2033. The structure is 128 ft (39 m) long and 41 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesFM 1015
CrossesDelta Lake Drain
Location1.3 MI S of FM 490
RouteState Highway 1015
StateTexas
Coordinates26.43761, -97.92441
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length128 ft (39 m)
Longest span64 ft (19.5 m)
Deck width41 ft (12.6 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,058 (2024)
Projected traffic1,310 by 2033
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 FM 1015 over Delta Lake Drain built?

It was built in 1998, making it 27 years old in 2025.

What condition is FM 1015 over Delta Lake 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 February 2023.

How much traffic does FM 1015 over Delta Lake Drain carry?

About 1,058 vehicles per day (2024 count), of which roughly 27% are trucks.

How long is FM 1015 over Delta Lake Drain?

The structure is 128 ft (39 m) long with a longest span of 64 ft (19.5 m) and a deck 41 ft wide.

Who owns FM 1015 over Delta Lake Drain?

It is owned by the State Highway Agency.