US Bridges

Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp

Fair

Clark County, Nevada · Las Vegas · Structure no. I 806R

Built
1999
26 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,530 ft
7 main spans
Daily traffic
15,800
2021 count
Owner
State
State Highway Agency

About this bridge

Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp is a steel continuous stringer/multi-beam or girder carrying Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp in Clark County, Nevada. It was built in 1999, so it is 26 years old, younger than the Nevada average of 36.4 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 15,800 vehicles a day, roughly 2% of them trucks, projected to reach 35,158 by 2040. The structure is 1,530 ft (466.4 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesRmp 15S-E Spr Mtn
CrossesI 15 Spr Mtn RD Rmp
LocationLas Vegas
RouteInterstate 15
StateNevada
Coordinates36.12689, -115.18092
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating64.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20 + Mod
Structure length1,530 ft (466.4 m)
Longest span205 ft (62.5 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,800 (2021)
Projected traffic35,158 by 2040
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp built?

It was built in 1999, making it 26 years old in 2025.

What condition is Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp 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 November 2024.

How much traffic does Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp carry?

About 15,800 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp?

The structure is 1,530 ft (466.4 m) long with a longest span of 205 ft (62.5 m) and a deck 43 ft wide.

Who owns Rmp 15S-E Spr Mtn over I 15 Spr Mtn RD Rmp?

It is owned by the State Highway Agency.