US Bridges

US 77 Sbml over CR 18

Good

Nueces County, Texas · 1.1 MI SW of FM 665 · Structure no. 161780010216226

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
310 ft
3 main spans
Daily traffic
21,608
2021 count
Owner
State
State Highway Agency

About this bridge

US 77 Sbml over CR 18 is a prestressed concrete stringer/multi-beam or girder carrying US 77 Sbml over CR 18 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 21,608 vehicles a day, roughly 29% of them trucks, projected to reach 30,251 by 2041. The structure is 310 ft (94.5 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 77 Sbml
CrossesCR 18
Location1.1 MI SW of FM 665
RouteU.S. Route 77
StateTexas
Coordinates27.66004, -97.75011
Functional classRural Principal Arterial - Other

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.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length310 ft (94.5 m)
Longest span120 ft (36.6 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,608 (2021)
Projected traffic30,251 by 2041
Trucks29%
Lanes on structure2
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 77 Sbml over CR 18 built?

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

What condition is US 77 Sbml over CR 18 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 January 2024.

How much traffic does US 77 Sbml over CR 18 carry?

About 21,608 vehicles per day (2021 count), of which roughly 29% are trucks.

How long is US 77 Sbml over CR 18?

The structure is 310 ft (94.5 m) long with a longest span of 120 ft (36.6 m) and a deck 40 ft wide.

Who owns US 77 Sbml over CR 18?

It is owned by the State Highway Agency.