US Bridges

CR 53 | Spruce Mtn over Carpenter Creek

Good

Douglas County, Colorado · 1.5 MI N Town Palmer Lk · Structure no. DOU053-03.65A

Built
2006
19 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
2,147
2021 count
Owner
County
County Highway Agency

About this bridge

CR 53 | Spruce Mtn over Carpenter Creek is a concrete culvert carrying CR 53 | Spruce Mtn over Carpenter Creek in Douglas County, Colorado. It was built in 2006, so it is 19 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 2,147 vehicles a day, roughly 5% of them trucks, projected to reach 2,877 by 2041. The structure is 35 ft (10.6 m) long and 57 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCR 53 | Spruce Mtn
CrossesCarpenter Creek
Location1.5 MI N Town Palmer Lk
RouteCounty Highway 0
Coordinates39.15051, -104.88583
Functional classRural Major Collector

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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.6 m)
Longest span17 ft (5.1 m)
Deck width57 ft (17.3 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,147 (2021)
Projected traffic2,877 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CR 53 | Spruce Mtn over Carpenter Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is CR 53 | Spruce Mtn over Carpenter 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 February 2025.

How much traffic does CR 53 | Spruce Mtn over Carpenter Creek carry?

About 2,147 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is CR 53 | Spruce Mtn over Carpenter Creek?

The structure is 35 ft (10.6 m) long with a longest span of 17 ft (5.1 m) and a deck 57 ft wide.

Who owns CR 53 | Spruce Mtn over Carpenter Creek?

It is owned by the County Highway Agency.