US Bridges

County Road 74 over Upper Bear Creek | Upper

Fair

Jefferson County, Colorado · 1.4 MI W JCT Evrgn Lake · Structure no. B-18-21A

Built
1992
33 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
1,436
2020 count
Owner
County
County Highway Agency

About this bridge

County Road 74 over Upper Bear Creek | Upper is a steel stringer/multi-beam or girder carrying County Road 74 over Upper Bear Creek | Upper in Jefferson County, Colorado. It was built in 1992, so it is 33 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 5 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 1,436 vehicles a day, roughly 4% of them trucks, projected to reach 1,652 by 2040. The structure is 28 ft (8.4 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCounty Road 74
CrossesUpper Bear Creek | Upper
Location1.4 MI W JCT Evrgn Lake
RouteCounty Highway 0
CountyJefferson County
StateColorado
Coordinates39.6386, -105.34974
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.8 US tons
Inventory rating55.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span21 ft (6.5 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,436 (2020)
Projected traffic1,652 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 74 over Upper Bear Creek | Upper built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road 74 over Upper Bear Creek | Upper 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 March 2025.

How much traffic does County Road 74 over Upper Bear Creek | Upper carry?

About 1,436 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is County Road 74 over Upper Bear Creek | Upper?

The structure is 28 ft (8.4 m) long with a longest span of 21 ft (6.5 m) and a deck 33 ft wide.

Who owns County Road 74 over Upper Bear Creek | Upper?

It is owned by the County Highway Agency.