US Bridges

Mile 17-1/2 N RD over Drainage Ditch

Fair

Hidalgo County, Texas · 0.20 MI E of FM 491 · Structure no. 211090AA0239001

Built
1989
36 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
61 ft
2 main spans
Daily traffic
51
2024 count
Owner
County
County Highway Agency

About this bridge

Mile 17-1/2 N RD over Drainage Ditch is a concrete stringer/multi-beam or girder carrying Mile 17-1/2 N RD over Drainage Ditch in Hidalgo County, Texas. It was built in 1989, so it is 36 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 51 vehicles a day, roughly 3% of them trucks, projected to reach 400 by 2042. The structure is 61 ft (18.6 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMile 17-1/2 N RD
CrossesDrainage Ditch
Location0.20 MI E of FM 491
RouteCounty Highway 0
CountyHidalgo County
StateTexas
Coordinates26.30895, -97.92583
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating72 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2024)
Projected traffic400 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Mile 17-1/2 N RD over Drainage Ditch built?

It was built in 1989, making it 36 years old in 2025.

What condition is Mile 17-1/2 N RD over 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 May 2024.

How much traffic does Mile 17-1/2 N RD over Drainage Ditch carry?

About 51 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Mile 17-1/2 N RD over Drainage Ditch?

The structure is 61 ft (18.6 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns Mile 17-1/2 N RD over Drainage Ditch?

It is owned by the County Highway Agency.