US Bridges

Ramp to I 70 Ebnd over Clear Creek Bp R

Fair

Jefferson County, Colorado · Ramp from SH121 to EB I70 · Structure no. E-16-KC

Built
1981
44 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
341 ft
4 main spans
Daily traffic
46,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to I 70 Ebnd over Clear Creek Bp R is a steel continuous stringer/multi-beam or girder carrying Ramp to I 70 Ebnd over Clear Creek Bp R in Jefferson County, Colorado. It was built in 1981, so it is 44 years old, older 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 46,000 vehicles a day, roughly 6% of them trucks, projected to reach 55,660 by 2040. The structure is 341 ft (103.9 m) long and 48 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRamp to I 70 Ebnd
CrossesClear Creek Bp R
LocationRamp from SH121 to EB I70
RouteInterstate 70A
Coordinates39.7856, -105.07561
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.2 US tons
Inventory rating48 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length341 ft (103.9 m)
Longest span89 ft (27 m)
Deck width48 ft (14.5 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,000 (2020)
Projected traffic55,660 by 2040
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ramp to I 70 Ebnd over Clear Creek Bp R built?

It was built in 1981, making it 44 years old in 2025.

What condition is Ramp to I 70 Ebnd over Clear Creek Bp R 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 June 2023.

How much traffic does Ramp to I 70 Ebnd over Clear Creek Bp R carry?

About 46,000 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Ramp to I 70 Ebnd over Clear Creek Bp R?

The structure is 341 ft (103.9 m) long with a longest span of 89 ft (27 m) and a deck 48 ft wide.

Who owns Ramp to I 70 Ebnd over Clear Creek Bp R?

It is owned by the State Highway Agency.