US Bridges

Silver Lake Drive over Clear Creek

FairPosted for load

Clear Creek County, Colorado · At Frontage Road · Structure no. CLRSLR-0.02

Built
1980
45 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
250
2020 count
Owner
County
County Highway Agency

About this bridge

Silver Lake Drive over Clear Creek is a steel stringer/multi-beam or girder carrying Silver Lake Drive over Clear Creek in Clear Creek County, Colorado. It was built in 1980, so it is 45 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 4% of them trucks, projected to reach 312 by 2040. The structure is 50 ft (15.2 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSilver Lake Drive
CrossesClear Creek
LocationAt Frontage Road
RouteCounty Highway 0
Coordinates39.76576, -105.62625
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 rating34 US tons
Inventory rating20.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span47 ft (14.3 m)
Deck width23 ft (7.1 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2020)
Projected traffic312 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Silver Lake Drive over Clear Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Silver Lake Drive over Clear Creek 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 April 2023.

How much traffic does Silver Lake Drive over Clear Creek carry?

About 250 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Silver Lake Drive over Clear Creek?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.3 m) and a deck 23 ft wide.

Who owns Silver Lake Drive over Clear Creek?

It is owned by the County Highway Agency.