US Bridges

Mangana Hein RD over Dolores Creek

PoorPosted for load

Webb County, Texas · 11.7 MI SE of US 83 · Structure no. 222400AA0313004

Built
1988
37 years old
Condition
Poor
inspected October 2024
Type
Culvert
Concrete
Length
139 ft
13 main spans
Daily traffic
252
2023 count
Owner
County
County Highway Agency

About this bridge

Mangana Hein RD over Dolores Creek is a concrete culvert carrying Mangana Hein RD over Dolores Creek in Webb County, Texas. It was built in 1988, so it is 37 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 252 vehicles a day, projected to reach 1,590 by 2033. The structure is 139 ft (42.4 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesMangana Hein RD
CrossesDolores Creek
Location11.7 MI SE of US 83
RouteCounty Highway 313
CountyWebb County
StateTexas
Coordinates27.29971, -99.34814
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans13
Design loadUnknown
Structure length139 ft (42.4 m)
Longest span11 ft (3.4 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic252 (2023)
Projected traffic1,590 by 2033
Trucks0%
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 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 Mangana Hein RD over Dolores Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is Mangana Hein RD over Dolores Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Mangana Hein RD over Dolores Creek carry?

About 252 vehicles per day (2023 count).

How long is Mangana Hein RD over Dolores Creek?

The structure is 139 ft (42.4 m) long with a longest span of 11 ft (3.4 m) and a deck 30 ft wide.

Who owns Mangana Hein RD over Dolores Creek?

It is owned by the County Highway Agency.