US Bridges

SH 186 over Draw

Good

Willacy County, Texas · 6.9 MI E of FM 3142 · Structure no. 212450043305003

Built
1980
45 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
170 ft
4 main spans
Daily traffic
795
2020 count
Owner
State
State Highway Agency

About this bridge

SH 186 over Draw is a prestressed concrete box beam or girders - multiple carrying SH 186 over Draw in Willacy County, Texas. It was built in 1980, so it is 45 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 795 vehicles a day, roughly 25% of them trucks, projected to reach 1,170 by 2033. The structure is 170 ft (51.8 m) long and 42 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesSH 186
CrossesDraw
Location6.9 MI E of FM 3142
RouteState Highway 186
StateTexas
Coordinates26.504, -97.48861
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable 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 spans4
Design loadHS 20
Structure length170 ft (51.8 m)
Longest span45 ft (13.7 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic795 (2020)
Projected traffic1,170 by 2033
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 SH 186 over Draw built?

It was built in 1980, making it 45 years old in 2025.

What condition is SH 186 over Draw in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does SH 186 over Draw carry?

About 795 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is SH 186 over Draw?

The structure is 170 ft (51.8 m) long with a longest span of 45 ft (13.7 m) and a deck 42 ft wide.

Who owns SH 186 over Draw?

It is owned by the State Highway Agency.