US Bridges

County Road 73 over Bear Creek

Good

Jefferson County, Colorado · At JCT W/ HWY 74 · Structure no. B-18-16A

Built
2003
22 years old
Condition
Good
inspected March 2025
Type
Frame
Concrete
Length
44 ft
1 main span
Daily traffic
15,760
2021 count
Owner
County
County Highway Agency

About this bridge

County Road 73 over Bear Creek is a concrete frame carrying County Road 73 over Bear Creek in Jefferson County, Colorado. It was built in 2003, so it is 22 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 15,760 vehicles a day, roughly 5% of them trucks, projected to reach 18,124 by 2041. The structure is 44 ft (13.4 m) long and 108 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 73
CrossesBear Creek
LocationAt JCT W/ HWY 74
RouteCounty Highway 0
Coordinates39.63239, -105.32084
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85 US tons
Inventory rating51 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width108 ft (32.9 m)
Roadway width72 ft (21.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,760 (2021)
Projected traffic18,124 by 2041
Trucks5%
Lanes on structure5
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 County Road 73 over Bear Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is County Road 73 over Bear 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 County Road 73 over Bear Creek carry?

About 15,760 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is County Road 73 over Bear Creek?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 108 ft wide.

Who owns County Road 73 over Bear Creek?

It is owned by the County Highway Agency.