US Bridges

Main Street over North Clear Creek

Fair

Gilpin County, Colorado · At Intersect With SH119 · Structure no. BLKHWK-MAIN

Built
2004
21 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
54 ft
1 main span
Daily traffic
1,836
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main Street over North Clear Creek is a prestressed concrete box beam or girders - single or spread carrying Main Street over North Clear Creek in Gilpin County, Colorado. It was built in 2004, so it is 21 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 1,836 vehicles a day, roughly 2% of them trucks, projected to reach 2,204 by 2040. The structure is 54 ft (16.6 m) long and 165 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMain Street
CrossesNorth Clear Creek
LocationAt Intersect With SH119
RouteCity Street 0
Coordinates39.79765, -105.47716
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.6 US tons
Inventory rating21.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.6 m)
Longest span50 ft (15.1 m)
Deck width165 ft (50.2 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,836 (2020)
Projected traffic2,204 by 2040
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$363,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over North Clear Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Main Street over North 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 Main Street over North Clear Creek carry?

About 1,836 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Main Street over North Clear Creek?

The structure is 54 ft (16.6 m) long with a longest span of 50 ft (15.1 m) and a deck 165 ft wide.

Who owns Main Street over North Clear Creek?

It is owned by the City or Municipal Highway Agency.