US Bridges

Colorado Boulevard over Clear Creek

Good

Clear Creek County, Colorado · In Idaho Springs · Structure no. IDAHO SPGS. 04

Built
2018
7 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
95 ft
1 main span
Daily traffic
3,792
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Colorado Boulevard over Clear Creek is a prestressed concrete box beam or girders - single or spread carrying Colorado Boulevard over Clear Creek in Clear Creek County, Colorado. It was built in 2018, so it is 7 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,792 vehicles a day, roughly 4% of them trucks, projected to reach 4,740 by 2040. The structure is 95 ft (29.1 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesColorado Boulevard
CrossesClear Creek
LocationIn Idaho Springs
RouteCity Street 0
CountyClear Creek County
StateColorado
Coordinates39.74247, -105.51353
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
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 evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.2 US tons
Inventory rating40.3 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length95 ft (29.1 m)
Longest span90 ft (27.3 m)
Deck width48 ft (14.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,792 (2020)
Projected traffic4,740 by 2040
Trucks4%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Colorado Boulevard over Clear Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is Colorado Boulevard over Clear Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Colorado Boulevard over Clear Creek carry?

About 3,792 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Colorado Boulevard over Clear Creek?

The structure is 95 ft (29.1 m) long with a longest span of 90 ft (27.3 m) and a deck 48 ft wide.

Who owns Colorado Boulevard over Clear Creek?

It is owned by the City or Municipal Highway Agency.