US Bridges

Fdr 105-4A over Fryingpan Rv

Fair

Pitkin County, Colorado · Nast · Structure no. 021503000001010

Built
1984
41 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
65 ft
2 main spans
Daily traffic
10
1993 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 105-4A over Fryingpan Rv is a wood or timber stringer/multi-beam or girder carrying Fdr 105-4A over Fryingpan Rv in Pitkin County, Colorado. It was built in 1984, so it is 41 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 10 vehicles a day, projected to reach 15 by 2045. The structure is 65 ft (19.9 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesFdr 105-4A
CrossesFryingpan Rv
LocationNast
RouteFederal Lands Road 105.4
Coordinates39.29829, -106.60559
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating24.3 US tons
Inventory rating18.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length65 ft (19.9 m)
Longest span29 ft (8.8 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1993)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 105-4A over Fryingpan Rv built?

It was built in 1984, making it 41 years old in 2025.

What condition is Fdr 105-4A over Fryingpan Rv 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 July 2024.

How much traffic does Fdr 105-4A over Fryingpan Rv carry?

About 10 vehicles per day (1993 count).

How long is Fdr 105-4A over Fryingpan Rv?

The structure is 65 ft (19.9 m) long with a longest span of 29 ft (8.8 m) and a deck 16 ft wide.

Who owns Fdr 105-4A over Fryingpan Rv?

It is owned by the U.S. Forest Service and maintained by the County Highway Agency.