US Bridges

Zinnia Rd(cr 2100) over Hild DD#1 Main Channel

Fair

Willacy County, Texas · 0.52 MI W of JCT FM 1420 · Structure no. 212450AA0207001

Built
1984
41 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
152 ft
5 main spans
Daily traffic
25
2009 count
Owner
County
County Highway Agency

About this bridge

Zinnia Rd(cr 2100) over Hild DD#1 Main Channel is a concrete stringer/multi-beam or girder carrying Zinnia Rd(cr 2100) over Hild DD#1 Main Channel in Willacy County, Texas. It was built in 1984, so it is 41 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 25 vehicles a day, roughly 3% of them trucks, projected to reach 25 by 2042. The structure is 152 ft (46.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesZinnia Rd(cr 2100)
CrossesHild DD#1 Main Channel
Location0.52 MI W of JCT FM 1420
RouteCounty Highway 2100
CountyWillacy County
StateTexas
Coordinates26.42418, -97.61597
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length152 ft (46.3 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2009)
Projected traffic25 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Zinnia Rd(cr 2100) over Hild DD#1 Main Channel built?

It was built in 1984, making it 41 years old in 2025.

What condition is Zinnia Rd(cr 2100) over Hild DD#1 Main Channel 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 April 2024.

How much traffic does Zinnia Rd(cr 2100) over Hild DD#1 Main Channel carry?

About 25 vehicles per day (2009 count), of which roughly 3% are trucks.

How long is Zinnia Rd(cr 2100) over Hild DD#1 Main Channel?

The structure is 152 ft (46.3 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Zinnia Rd(cr 2100) over Hild DD#1 Main Channel?

It is owned by the County Highway Agency.