US Bridges

Ramp to US 6 Ml over Clear Creek R

Poor

Clear Creek County, Colorado · 5.7 MI E of JCT SH 103 · Structure no. F-15-BM

Built
1959
66 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
161 ft
4 main spans
Daily traffic
41,000
2020 count
Owner
State
State Highway Agency

About this bridge

Ramp to US 6 Ml over Clear Creek R is a steel stringer/multi-beam or girder carrying Ramp to US 6 Ml over Clear Creek R in Clear Creek County, Colorado. It was built in 1959, so it is 66 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 41,000 vehicles a day, roughly 7% of them trucks, projected to reach 50,840 by 2040. The structure is 161 ft (49.2 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesRamp to US 6 Ml
CrossesClear Creek R
Location5.7 MI E of JCT SH 103
RouteInterstate 70A
Coordinates39.74645, -105.43709
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating50.6 US tons
Inventory rating30.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length161 ft (49.2 m)
Longest span41 ft (12.6 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41,000 (2020)
Projected traffic50,840 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 US 6 Ml over Clear Creek R built?

It was built in 1959, making it 66 years old in 2025.

What condition is Ramp to US 6 Ml over Clear Creek R in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does Ramp to US 6 Ml over Clear Creek R carry?

About 41,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Ramp to US 6 Ml over Clear Creek R?

The structure is 161 ft (49.2 m) long with a longest span of 41 ft (12.6 m) and a deck 34 ft wide.

Who owns Ramp to US 6 Ml over Clear Creek R?

It is owned by the State Highway Agency.