US Bridges

Rocky Point Road over Fourmile Creek

Good

Klamath County, Oregon · 009 MI N of HWY 140 · Structure no. 35C182052900090

Built
1965
60 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
546
2020 count
Owner
County
County Highway Agency

About this bridge

Rocky Point Road over Fourmile Creek is a prestressed concrete box beam or girders - multiple carrying Rocky Point Road over Fourmile Creek in Klamath County, Oregon. It was built in 1965, so it is 60 years old, older 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 546 vehicles a day, roughly 10% of them trucks, projected to reach 576 by 2025. The structure is 80 ft (24.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRocky Point Road
CrossesFourmile Creek
Location009 MI N of HWY 140
RouteCounty Highway C0529
StateOregon
Coordinates42.46254, -122.10604
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span78 ft (23.8 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic546 (2020)
Projected traffic576 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rocky Point Road over Fourmile Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Rocky Point Road over Fourmile 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 March 2023.

How much traffic does Rocky Point Road over Fourmile Creek carry?

About 546 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Rocky Point Road over Fourmile Creek?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.8 m) and a deck 34 ft wide.

Who owns Rocky Point Road over Fourmile Creek?

It is owned by the County Highway Agency.