US Bridges

IH 37 NB over Navigation Blvd

Fair

Nueces County, Texas · 2.70 MI W of SH 286 · Structure no. 161780007406075

Built
1965
60 years old
Condition
Fair
inspected March 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
192 ft
2 main spans
Daily traffic
20,180
2013 count
Owner
State
State Highway Agency

About this bridge

IH 37 NB over Navigation Blvd is a prestressed concrete stringer/multi-beam or girder carrying IH 37 NB over Navigation Blvd in Nueces County, Texas. It was built in 1965, so it is 60 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 20,180 vehicles a day, roughly 11% of them trucks, projected to reach 28,250 by 2033. The structure is 192 ft (58.5 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesIH 37 NB
CrossesNavigation Blvd
Location2.70 MI W of SH 286
RouteInterstate 37
CountyNueces County
StateTexas
Coordinates27.80397, -97.45343
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating43 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length192 ft (58.5 m)
Longest span55 ft (16.8 m)
Deck width53 ft (16.3 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,180 (2013)
Projected traffic28,250 by 2033
Trucks11%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 37 NB over Navigation Blvd built?

It was built in 1965, making it 60 years old in 2025.

What condition is IH 37 NB over Navigation Blvd 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 March 2022.

How much traffic does IH 37 NB over Navigation Blvd carry?

About 20,180 vehicles per day (2013 count), of which roughly 11% are trucks.

How long is IH 37 NB over Navigation Blvd?

The structure is 192 ft (58.5 m) long with a longest span of 55 ft (16.8 m) and a deck 53 ft wide.

Who owns IH 37 NB over Navigation Blvd?

It is owned by the State Highway Agency.