US Bridges

Fdr 504 over Fryingpan Rv

Fair

Pitkin County, Colorado · Norrie · Structure no. 021503000001008

Built
1948
77 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
42 ft
2 main spans
Daily traffic
10
1991 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 504 over Fryingpan Rv is a steel continuous stringer/multi-beam or girder carrying Fdr 504 over Fryingpan Rv in Pitkin County, Colorado. It was built in 1948, so it is 77 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.

It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 42 ft (12.8 m) long and 13 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesFdr 504
CrossesFryingpan Rv
LocationNorrie
RouteFederal Lands Road 504.1
CountyPitkin County
StateColorado
Coordinates39.32622, -106.65567
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.2 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadH 15
Structure length42 ft (12.8 m)
Longest span16 ft (5 m)
Deck width13 ft (4.1 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1991)
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 504 over Fryingpan Rv built?

It was built in 1948, making it 77 years old in 2025.

What condition is Fdr 504 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 504 over Fryingpan Rv carry?

About 10 vehicles per day (1991 count).

How long is Fdr 504 over Fryingpan Rv?

The structure is 42 ft (12.8 m) long with a longest span of 16 ft (5 m) and a deck 13 ft wide.

Who owns Fdr 504 over Fryingpan Rv?

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