US Bridges

Road over Hamilton Creek

Good

Clackamas County, Oregon · 45.49327 -122.03639 · Structure no. 060609000035619

Built
2022
3 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
10
2022 count
Owner
Federal
U.S. Forest Service

About this bridge

Road over Hamilton Creek is a prestressed concrete slab carrying Road over Hamilton Creek in Clackamas County, Oregon. It was built in 2022, so it is 3 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 8 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 55 ft (16.8 m) long and 17 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesRoad
CrossesHamilton Creek
Location45.49327 -122.03639
RouteFederal Lands Road 10000
StateOregon
Coordinates45.49327, -122.03639
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length55 ft (16.8 m)
Longest span55 ft (16.8 m)
Deck width17 ft (5.3 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic15 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byCity or Municipal 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 Road over Hamilton Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Road over Hamilton 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 July 2024.

How much traffic does Road over Hamilton Creek carry?

About 10 vehicles per day (2022 count).

How long is Road over Hamilton Creek?

The structure is 55 ft (16.8 m) long with a longest span of 55 ft (16.8 m) and a deck 17 ft wide.

Who owns Road over Hamilton Creek?

It is owned by the U.S. Forest Service and maintained by the City or Municipal Highway Agency.