US Bridges

Lp 20 over Chacon Creek

Good

Webb County, Texas · 0.15 MI N of US 59 · Structure no. 222400008614064

Built
1995
30 years old, rebuilt 2007
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
276 ft
4 main spans
Daily traffic
13,288
2018 count
Owner
State
State Highway Agency

About this bridge

Lp 20 over Chacon Creek is a prestressed concrete stringer/multi-beam or girder carrying Lp 20 over Chacon Creek in Webb County, Texas. It was built in 1995 and reconstructed in 2007, so it is 30 years old, younger 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 13,288 vehicles a day, roughly 5% of them trucks, projected to reach 34,340 by 2031. The structure is 276 ft (84.1 m) long and 118 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesLp 20
CrossesChacon Creek
Location0.15 MI N of US 59
RouteState Highway 20
CountyWebb County
StateTexas
Coordinates27.53114, -99.4458
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length276 ft (84.1 m)
Longest span70 ft (21.3 m)
Deck width118 ft (36.1 m)
Roadway width99 ft (30.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,288 (2018)
Projected traffic34,340 by 2031
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Lp 20 over Chacon Creek built?

It was built in 1995, making it 30 years old in 2025. It was reconstructed in 2007.

What condition is Lp 20 over Chacon Creek 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 December 2022.

How much traffic does Lp 20 over Chacon Creek carry?

About 13,288 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Lp 20 over Chacon Creek?

The structure is 276 ft (84.1 m) long with a longest span of 70 ft (21.3 m) and a deck 118 ft wide.

Who owns Lp 20 over Chacon Creek?

It is owned by the State Highway Agency.