US Bridges

County Road 4405 over Fire Mountain Canal

Fair

Delta County, Colorado · 2 MI NE of SH133/BOWIE RD · Structure no. DEL4405D-.1-61

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
38
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 4405 over Fire Mountain Canal is a steel stringer/multi-beam or girder carrying County Road 4405 over Fire Mountain Canal in Delta County, Colorado. It was built in 1976, so it is 49 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: open, posting recommended but not legally implemented.

It carries about 38 vehicles a day, projected to reach 43 by 2042. The structure is 36 ft (11.1 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesCounty Road 4405
CrossesFire Mountain Canal
Location2 MI NE of SH133/BOWIE RD
RouteCounty Highway 0
CountyDelta County
StateColorado
Coordinates38.92564, -107.52461
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, posting recommended but not legally implemented
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.3 US tons
Inventory rating14.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span34 ft (10.5 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (2022)
Projected traffic43 by 2042
Trucks0%
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 4405 over Fire Mountain Canal built?

It was built in 1976, making it 49 years old in 2025.

What condition is County Road 4405 over Fire Mountain Canal 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 October 2023.

How much traffic does County Road 4405 over Fire Mountain Canal carry?

About 38 vehicles per day (2022 count).

How long is County Road 4405 over Fire Mountain Canal?

The structure is 36 ft (11.1 m) long with a longest span of 34 ft (10.5 m) and a deck 24 ft wide.

Who owns County Road 4405 over Fire Mountain Canal?

It is owned by the County Highway Agency.