US Bridges

Garden Valley Road over Newton Creek

Fair

Douglas County, Oregon · 1.0 Mi. West of I-5 · Structure no. 18790 00000 001

Built
1998
27 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
29 ft
3 main spans
Daily traffic
21,296
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Garden Valley Road over Newton Creek is a concrete continuous culvert carrying Garden Valley Road over Newton Creek in Douglas County, Oregon. It was built in 1998, so it is 27 years old, younger 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.

It carries about 21,296 vehicles a day, roughly 10% of them trucks, projected to reach 24,024 by 2025. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesGarden Valley Road
CrossesNewton Creek
Location1.0 Mi. West of I-5
RouteCity Street 0
StateOregon
Coordinates43.2315, -123.3729
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating75.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length29 ft (8.8 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,296 (2020)
Projected traffic24,024 by 2025
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Garden Valley Road over Newton Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Garden Valley Road over Newton 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 April 2023.

How much traffic does Garden Valley Road over Newton Creek carry?

About 21,296 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Garden Valley Road over Newton Creek?

The structure is 29 ft (8.8 m) long with a longest span of 8 ft (2.4 m).

Who owns Garden Valley Road over Newton Creek?

It is owned by the City or Municipal Highway Agency.