US Bridges

Road over Bull Run Slide

Good

Clackamas County, Oregon · S-04 T-2S R-5E Wm · Structure no. 060604000001537

Built
1984
41 years old
Condition
Good
inspected August 2021
Type
Slab
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
150
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Bull Run Slide is a prestressed concrete slab carrying Road over Bull Run Slide in Clackamas County, Oregon. It was built in 1984, so it is 41 years old, younger than the Oregon average of 49.9 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 225 by 2045. The structure is 51 ft (15.5 m) long and 14 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesBull Run Slide
LocationS-04 T-2S R-5E Wm
RouteFederal Lands Road 10000
StateOregon
Coordinates45.4284, -122.23242
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.9 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width14 ft (4.4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2006)
Projected traffic225 by 2045
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesOther
Detour if closed620.7 mi (999 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 Bull Run Slide built?

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

What condition is Road over Bull Run Slide 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 August 2021.

How much traffic does Road over Bull Run Slide carry?

About 150 vehicles per day (2006 count), of which roughly 5% are trucks.

How long is Road over Bull Run Slide?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 14 ft wide.

Who owns Road over Bull Run Slide?

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