US Bridges

Carbon Plant RD over IH 37

Fair

Nueces County, Texas · 0.70 MI E of FM 3386 · Structure no. 161780007406102

Built
1968
57 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
250 ft
2 main spans
Daily traffic
2,296
2022 count
Owner
State
State Highway Agency

About this bridge

Carbon Plant RD over IH 37 is a prestressed concrete stringer/multi-beam or girder carrying Carbon Plant RD over IH 37 in Nueces County, Texas. It was built in 1968, so it is 57 years old, older 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 2,296 vehicles a day, roughly 42% of them trucks, projected to reach 2,847 by 2042. The structure is 250 ft (76.2 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCarbon Plant RD
CrossesIH 37
Location0.70 MI E of FM 3386
RouteCity Street 0
StateTexas
Coordinates27.84259, -97.56147
Functional classUrban 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.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating32 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadH 20
Structure length250 ft (76.2 m)
Longest span78 ft (23.8 m)
Deck width35 ft (10.7 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,296 (2022)
Projected traffic2,847 by 2042
Trucks42%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Carbon Plant RD over IH 37 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Carbon Plant RD over IH 37 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 Carbon Plant RD over IH 37 carry?

About 2,296 vehicles per day (2022 count), of which roughly 42% are trucks.

How long is Carbon Plant RD over IH 37?

The structure is 250 ft (76.2 m) long with a longest span of 78 ft (23.8 m) and a deck 35 ft wide.

Who owns Carbon Plant RD over IH 37?

It is owned by the State Highway Agency.