US Bridges

Westside Road over Mendenhall Creek

FairPosted for load

Josephine County, Oregon · T40S-R8W-S5 · Structure no. 530012530000010

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
410
2020 count
Owner
County
County Highway Agency

About this bridge

Westside Road over Mendenhall Creek is a concrete continuous culvert carrying Westside Road over Mendenhall Creek in Josephine County, Oregon. It was built in 1970, so it is 55 years old, older than the Oregon average of 49.9 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. Its operating status is: posted for load restriction.

It carries about 410 vehicles a day, roughly 10% of them trucks, projected to reach 477 by 2025. The structure is 21 ft (6.4 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWestside Road
CrossesMendenhall Creek
LocationT40S-R8W-S5
RouteCounty Highway C5300
StateOregon
Coordinates42.11863, -123.67546
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27.1 US tons
Inventory rating20.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span11 ft (3.4 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2020)
Projected traffic477 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 Westside Road over Mendenhall Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Westside Road over Mendenhall Creek 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 October 2024.

How much traffic does Westside Road over Mendenhall Creek carry?

About 410 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Westside Road over Mendenhall Creek?

The structure is 21 ft (6.4 m) long with a longest span of 11 ft (3.4 m) and a deck 33 ft wide.

Who owns Westside Road over Mendenhall Creek?

It is owned by the County Highway Agency.