US Bridges

IH 37 Sbml over US 181

Good

Nueces County, Texas · 1.15 MI S of Cc Harbor Br · Structure no. 161780007406224

Built
2023
2 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
411 ft
2 main spans
Daily traffic
31,009
2022 count
Owner
State
State Highway Agency

About this bridge

IH 37 Sbml over US 181 is a prestressed concrete stringer/multi-beam or girder carrying IH 37 Sbml over US 181 in Nueces County, Texas. It was built in 2023, so it is 2 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 31,009 vehicles a day, roughly 6% of them trucks, projected to reach 46,513 by 2042. The structure is 411 ft (125.3 m) long and 58 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIH 37 Sbml
CrossesUS 181
Location1.15 MI S of Cc Harbor Br
RouteInterstate 37
CountyNueces County
StateTexas
Coordinates27.79777, -97.40858
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour evaluation has not been made
Structural evaluation8: Equal to present desirable 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 spans2 (+2 approach)
Design loadHL 93
Structure length411 ft (125.3 m)
Longest span134 ft (40.8 m)
Deck width58 ft (17.7 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deck40 ft (12.2 m)

Traffic and service

Average daily traffic31,009 (2022)
Projected traffic46,513 by 2042
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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 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 IH 37 Sbml over US 181 built?

It was built in 2023, making it 2 years old in 2025.

What condition is IH 37 Sbml over US 181 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 March 2024.

How much traffic does IH 37 Sbml over US 181 carry?

About 31,009 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is IH 37 Sbml over US 181?

The structure is 411 ft (125.3 m) long with a longest span of 134 ft (40.8 m) and a deck 58 ft wide.

Who owns IH 37 Sbml over US 181?

It is owned by the State Highway Agency.