US Bridges

Road over Jackman Creek

Good

Skagit County, Washington · No Data Entered · Structure no. 060501000001510

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
10
1996 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Jackman Creek is a prestressed concrete stringer/multi-beam or girder carrying Road over Jackman Creek in Skagit County, Washington. It was built in 1985, so it is 40 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 71 ft (21.6 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesRoad
CrossesJackman Creek
LocationNo Data Entered
RouteFederal Lands Road 14000
Coordinates48.56208, -121.60527
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating83.1 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length71 ft (21.6 m)
Longest span66 ft (20.2 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1996)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-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 byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Road over Jackman Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Road over Jackman Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Road over Jackman Creek carry?

About 10 vehicles per day (1996 count).

How long is Road over Jackman Creek?

The structure is 71 ft (21.6 m) long with a longest span of 66 ft (20.2 m) and a deck 16 ft wide.

Who owns Road over Jackman Creek?

It is owned by the U.S. Forest Service.