US Bridges

Colorado Boulevard over Soda Creek

Fair

Clear Creek County, Colorado · In Idaho Springs · Structure no. F-14-V

Built
1931
94 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
4,159
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Colorado Boulevard over Soda Creek is a concrete culvert carrying Colorado Boulevard over Soda Creek in Clear Creek County, Colorado. It was built in 1931, so it is 94 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 4,159 vehicles a day, roughly 5% of them trucks, projected to reach 5,198 by 2040. The structure is 21 ft (6.3 m) long and 62 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesColorado Boulevard
CrossesSoda Creek
LocationIn Idaho Springs
RouteState Highway 0
Coordinates39.74267, -105.5115
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width62 ft (18.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,159 (2020)
Projected traffic5,198 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Colorado Boulevard over Soda Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is Colorado Boulevard over Soda 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 Colorado Boulevard over Soda Creek carry?

About 4,159 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Colorado Boulevard over Soda Creek?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m) and a deck 62 ft wide.

Who owns Colorado Boulevard over Soda Creek?

It is owned by the City or Municipal Highway Agency.