US Bridges

County Road 41 over N. Fork Michigan River

Fair

Jackson County, Colorado · 1.3 MI E of S.H. 14 · Structure no. 57004101.30032

Built
2006
19 years old
Condition
Fair
inspected November 2024
Type
Frame
Steel
Length
20 ft
1 main span
Daily traffic
184
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 41 over N. Fork Michigan River is a steel frame carrying County Road 41 over N. Fork Michigan River in Jackson 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 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 184 vehicles a day, roughly 17% of them trucks, projected to reach 239 by 2043. The structure is 20 ft (6.2 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 41
CrossesN. Fork Michigan River
Location1.3 MI E of S.H. 14
RouteCounty Highway 0
CountyJackson County
StateColorado
Coordinates40.54936, -106.0212
Functional classRural Minor 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
Superstructure7 GoodSome minor problems.
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 inspectionNovember 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeFrame
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic184 (2023)
Projected traffic239 by 2043
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 41 over N. Fork Michigan River built?

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

What condition is County Road 41 over N. Fork Michigan River 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 November 2024.

How much traffic does County Road 41 over N. Fork Michigan River carry?

About 184 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is County Road 41 over N. Fork Michigan River?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 28 ft wide.

Who owns County Road 41 over N. Fork Michigan River?

It is owned by the County Highway Agency.