US Bridges

Chemawa Road over UPRR & Indian School RD

Fair

Marion County, Oregon · East of HWY 1 Chemawa Int · Structure no. 16569 001C26020

Built
1983
42 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
240 ft
4 main spans
Daily traffic
102,351
2022 count
Owner
State
State Highway Agency

About this bridge

Chemawa Road over UPRR & Indian School RD is a prestressed concrete slab carrying Chemawa Road over UPRR & Indian School RD in Marion County, Oregon. It was built in 1983, so it is 42 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 102,351 vehicles a day, roughly 13% of them trucks, projected to reach 109,800 by 2042. The structure is 240 ft (73.2 m) long and 77 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesChemawa Road
CrossesUPRR & Indian School RD
LocationEast of HWY 1 Chemawa Int
RouteInterstate 0
CountyMarion County
StateOregon
Coordinates45.00493, -122.99121
Functional classUrban Other Principal 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.6 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span67 ft (20.4 m)
Deck width77 ft (23.6 m)
Roadway width68 ft (20.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102,351 (2022)
Projected traffic109,800 by 2042
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Chemawa Road over UPRR & Indian School RD built?

It was built in 1983, making it 42 years old in 2025.

What condition is Chemawa Road over UPRR & Indian School RD 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 August 2024.

How much traffic does Chemawa Road over UPRR & Indian School RD carry?

About 102,351 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Chemawa Road over UPRR & Indian School RD?

The structure is 240 ft (73.2 m) long with a longest span of 67 ft (20.4 m) and a deck 77 ft wide.

Who owns Chemawa Road over UPRR & Indian School RD?

It is owned by the State Highway Agency.