US Bridges

SB US 85 on Ramp over Terrain

Fair

Douglas County, Colorado · Sbnd on Ramp C · Structure no. CAS CASRKPWY-5

Built
2014
11 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
246 ft
2 main spans
Daily traffic
1,862
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

SB US 85 on Ramp over Terrain is a prestressed concrete continuous stringer/multi-beam or girder carrying SB US 85 on Ramp over Terrain in Douglas County, Colorado. It was built in 2014, so it is 11 years old, younger than the Colorado average of 42.2 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 1,862 vehicles a day, roughly 3% of them trucks, projected to reach 2,495 by 2042. The structure is 246 ft (75.1 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSB US 85 on Ramp
CrossesTerrain
LocationSbnd on Ramp C
RouteU.S. Route 0
CountyDouglas County
StateColorado
Coordinates39.41988, -104.88751
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionMarch 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
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans2
Design loadHL 93
Structure length246 ft (75.1 m)
Longest span122 ft (37.3 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,862 (2022)
Projected traffic2,495 by 2042
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 SB US 85 on Ramp over Terrain built?

It was built in 2014, making it 11 years old in 2025.

What condition is SB US 85 on Ramp over Terrain 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 March 2025.

How much traffic does SB US 85 on Ramp over Terrain carry?

About 1,862 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is SB US 85 on Ramp over Terrain?

The structure is 246 ft (75.1 m) long with a longest span of 122 ft (37.3 m) and a deck 32 ft wide.

Who owns SB US 85 on Ramp over Terrain?

It is owned by the Town or Township Highway Agency.