US Bridges

Davis RD over Johnson Creek

Good

Washington County, Oregon · .2MI West Off Murrey Blvd · Structure no. BB0016 00000000

Built
1997
28 years old
Condition
Good
inspected July 2024
Type
Slab
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
330
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Davis RD over Johnson Creek is a prestressed concrete slab carrying Davis RD over Johnson Creek in Washington County, Oregon. It was built in 1997, so it is 28 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 330 vehicles a day, roughly 22% of them trucks, projected to reach 340 by 2038. The structure is 56 ft (17.1 m) long and 39 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesDavis RD
CrossesJohnson Creek
Location.2MI West Off Murrey Blvd
RouteCity Street 0
StateOregon
Coordinates45.4747, -122.83245
Functional classUrban Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment7: Better than present minimum criteria
Operating rating88 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length56 ft (17.1 m)
Longest span54 ft (16.5 m)
Deck width39 ft (11.9 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2018)
Projected traffic340 by 2038
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 Davis RD over Johnson Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Davis RD over Johnson 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 Davis RD over Johnson Creek carry?

About 330 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is Davis RD over Johnson Creek?

The structure is 56 ft (17.1 m) long with a longest span of 54 ft (16.5 m) and a deck 39 ft wide.

Who owns Davis RD over Johnson Creek?

It is owned by the City or Municipal Highway Agency.