US Bridges

Corwina Park Road over Bear Creek

Fair

Jefferson County, Colorado · Corwina Park · Structure no. C-19-29

Built
1972
53 years old
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
43 ft
1 main span
Daily traffic
146
2021 count
Owner
County
County Highway Agency

About this bridge

Corwina Park Road over Bear Creek is a steel stringer/multi-beam or girder carrying Corwina Park Road over Bear Creek in Jefferson County, Colorado. It was built in 1972, so it is 53 years old, older 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 146 vehicles a day, projected to reach 168 by 2041. The structure is 43 ft (13 m) long and 13 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCorwina Park Road
CrossesBear Creek
LocationCorwina Park
RouteCounty Highway 0
CountyJefferson County
StateColorado
Coordinates39.66113, -105.28518
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating28 US tons
Inventory rating20.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length43 ft (13 m)
Longest span36 ft (10.9 m)
Deck width13 ft (3.9 m)
Roadway width11 ft (3.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic146 (2021)
Projected traffic168 by 2041
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$87,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Corwina Park Road over Bear Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Corwina Park Road over Bear 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 March 2025.

How much traffic does Corwina Park Road over Bear Creek carry?

About 146 vehicles per day (2021 count).

How long is Corwina Park Road over Bear Creek?

The structure is 43 ft (13 m) long with a longest span of 36 ft (10.9 m) and a deck 13 ft wide.

Who owns Corwina Park Road over Bear Creek?

It is owned by the County Highway Agency.