US Bridges

Simms Street over North Coon Creek

Good

Jefferson County, Colorado · 0.2 MI South of Belleview · Structure no. H-18-95

Built
2002
23 years old
Condition
Good
inspected March 2025
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
13,889
2021 count
Owner
County
County Highway Agency

About this bridge

Simms Street over North Coon Creek is a concrete culvert carrying Simms Street over North Coon Creek in Jefferson County, Colorado. It was built in 2002, so it is 23 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 13,889 vehicles a day, roughly 1% of them trucks, projected to reach 15,973 by 2041. The structure is 27 ft (8.1 m) long and 139 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSimms Street
CrossesNorth Coon Creek
Location0.2 MI South of Belleview
RouteCounty Highway 0
Coordinates39.62034, -105.12871
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length27 ft (8.1 m)
Longest span12 ft (3.7 m)
Deck width139 ft (42.5 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,889 (2021)
Projected traffic15,973 by 2041
Trucks1%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Simms Street over North Coon Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is Simms Street over North Coon 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 March 2025.

How much traffic does Simms Street over North Coon Creek carry?

About 13,889 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is Simms Street over North Coon Creek?

The structure is 27 ft (8.1 m) long with a longest span of 12 ft (3.7 m) and a deck 139 ft wide.

Who owns Simms Street over North Coon Creek?

It is owned by the County Highway Agency.