US Bridges

N Phoenix Road over Larson Creek

Good

Jackson County, Oregon · 0.52 MI S Barrnett RD · Structure no. 20564 000 00000

Built
2007
18 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
37 ft
1 main span
Daily traffic
4,777
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Phoenix Road over Larson Creek is a prestressed concrete slab carrying N Phoenix Road over Larson Creek in Jackson County, Oregon. It was built in 2007, so it is 18 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 4,777 vehicles a day, roughly 5% of them trucks, projected to reach 5,558 by 2025. The structure is 37 ft (11.3 m) long and 86 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN Phoenix Road
CrossesLarson Creek
Location0.52 MI S Barrnett RD
RouteCity Street 0
StateOregon
Coordinates42.3121, -122.81537
Functional classUrban Minor Arterial

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length37 ft (11.3 m)
Longest span33 ft (10.1 m)
Deck width86 ft (26.2 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,777 (2020)
Projected traffic5,558 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
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 N Phoenix Road over Larson Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is N Phoenix Road over Larson 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 2023.

How much traffic does N Phoenix Road over Larson Creek carry?

About 4,777 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is N Phoenix Road over Larson Creek?

The structure is 37 ft (11.3 m) long with a longest span of 33 ft (10.1 m) and a deck 86 ft wide.

Who owns N Phoenix Road over Larson Creek?

It is owned by the City or Municipal Highway Agency.