US Bridges

Sky Ridge Avenue over NB I25 Ml | SB I25 Ml

Good

Douglas County, Colorado · 0.4 MI S of Lincoln Ave · Structure no. LONE TREE-4

Built
2018
7 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
500 ft
4 main spans
Daily traffic
4
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sky Ridge Avenue over NB I25 Ml | SB I25 Ml is a prestressed concrete continuous stringer/multi-beam or girder carrying Sky Ridge Avenue over NB I25 Ml | SB I25 Ml in Douglas County, Colorado. It was built in 2018, so it is 7 years old, younger than the Colorado average of 42.2 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 4 vehicles a day, roughly 1% of them trucks, projected to reach 5 by 2041. The structure is 500 ft (152.4 m) long and 67 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSky Ridge Avenue
CrossesNB I25 Ml | SB I25 Ml
Location0.4 MI S of Lincoln Ave
RouteCity Street 0
Coordinates39.53077, -104.86837
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length500 ft (152.4 m)
Longest span123 ft (37.6 m)
Deck width67 ft (20.4 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4 (2021)
Projected traffic5 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Sky Ridge Avenue over NB I25 Ml | SB I25 Ml built?

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

What condition is Sky Ridge Avenue over NB I25 Ml | SB I25 Ml 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 2025.

How much traffic does Sky Ridge Avenue over NB I25 Ml | SB I25 Ml carry?

About 4 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Sky Ridge Avenue over NB I25 Ml | SB I25 Ml?

The structure is 500 ft (152.4 m) long with a longest span of 123 ft (37.6 m) and a deck 67 ft wide.

Who owns Sky Ridge Avenue over NB I25 Ml | SB I25 Ml?

It is owned by the City or Municipal Highway Agency.