US Bridges

North Fork RD over Little North Santiam R.

Fair

Marion County, Oregon · 11.0 NE of Hwy. 22 · Structure no. 18514 960 00000

Built
2000
25 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Steel
Length
202 ft
1 main span
Daily traffic
399
2020 count
Owner
County
County Highway Agency

About this bridge

North Fork RD over Little North Santiam R. is a steel box beam or girders - multiple carrying North Fork RD over Little North Santiam R. in Marion County, Oregon. It was built in 2000, so it is 25 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 399 vehicles a day, roughly 3% of them trucks, projected to reach 449 by 2025. The structure is 202 ft (61.5 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorth Fork RD
CrossesLittle North Santiam R.
Location11.0 NE of Hwy. 22
RouteCounty Highway A0602
CountyMarion County
StateOregon
Coordinates44.80798, -122.40929
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating92.2 US tons
Inventory rating71.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length202 ft (61.5 m)
Longest span199 ft (60.7 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic399 (2020)
Projected traffic449 by 2025
Trucks3%
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 North Fork RD over Little North Santiam R. built?

It was built in 2000, making it 25 years old in 2025.

What condition is North Fork RD over Little North Santiam R. 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 North Fork RD over Little North Santiam R. carry?

About 399 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is North Fork RD over Little North Santiam R.?

The structure is 202 ft (61.5 m) long with a longest span of 199 ft (60.7 m) and a deck 38 ft wide.

Who owns North Fork RD over Little North Santiam R.?

It is owned by the County Highway Agency.