US Bridges

SH 470 Ml Wbnd over Dutch Creek

Fair

Jefferson County, Colorado · .5 MI S. of Bowles · Structure no. F-16-PH

Built
1988
37 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
270 ft
2 main spans
Daily traffic
29,000
2020 count
Owner
State
State Highway Agency

About this bridge

SH 470 Ml Wbnd over Dutch Creek is a steel continuous stringer/multi-beam or girder carrying SH 470 Ml Wbnd over Dutch Creek in Jefferson County, Colorado. It was built in 1988, so it is 37 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 29,000 vehicles a day, roughly 3% of them trucks, projected to reach 39,150 by 2040. The structure is 270 ft (82.4 m) long and 41 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesSH 470 Ml Wbnd
CrossesDutch Creek
Location.5 MI S. of Bowles
RouteState Highway 470A
CountyJefferson County
StateColorado
Coordinates39.60206, -105.15347
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating46.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length270 ft (82.4 m)
Longest span134 ft (40.8 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,000 (2020)
Projected traffic39,150 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 SH 470 Ml Wbnd over Dutch Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is SH 470 Ml Wbnd over Dutch 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 August 2023.

How much traffic does SH 470 Ml Wbnd over Dutch Creek carry?

About 29,000 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is SH 470 Ml Wbnd over Dutch Creek?

The structure is 270 ft (82.4 m) long with a longest span of 134 ft (40.8 m) and a deck 41 ft wide.

Who owns SH 470 Ml Wbnd over Dutch Creek?

It is owned by the State Highway Agency.