US Bridges

SA3C over CHARLESTON/I-15 SB Ramps

Good

Clark County, Nevada · Las Vegas · Structure no. H3057

Built
2018
7 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,301 ft
9 main spans
Daily traffic
7,200
2021 count
Owner
State
State Highway Agency

About this bridge

SA3C over CHARLESTON/I-15 SB Ramps is a prestressed concrete stringer/multi-beam or girder carrying SA3C over CHARLESTON/I-15 SB Ramps in Clark County, Nevada. It was built in 2018, so it is 7 years old, younger than the Nevada average of 36.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,200 vehicles a day, projected to reach 29,367 by 2040. The structure is 1,301 ft (396.5 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSA3C
CrossesCHARLESTON/I-15 SB Ramps
LocationLas Vegas
RouteCity Street 0
CountyClark County
StateNevada
Coordinates36.15899, -115.16116
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating42.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHL 93
Structure length1,301 ft (396.5 m)
Longest span168 ft (51.2 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,200 (2021)
Projected traffic29,367 by 2040
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 SA3C over CHARLESTON/I-15 SB Ramps built?

It was built in 2018, making it 7 years old in 2025.

What condition is SA3C over CHARLESTON/I-15 SB Ramps 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 September 2022.

How much traffic does SA3C over CHARLESTON/I-15 SB Ramps carry?

About 7,200 vehicles per day (2021 count).

How long is SA3C over CHARLESTON/I-15 SB Ramps?

The structure is 1,301 ft (396.5 m) long with a longest span of 168 ft (51.2 m) and a deck 39 ft wide.

Who owns SA3C over CHARLESTON/I-15 SB Ramps?

It is owned by the State Highway Agency.