US Bridges

Nygren Road over Murder Creek

Good

Linn County, Oregon · Duraflake Plant · Structure no. 31602 031600002

Built
1962
63 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
1,854
2021 count
Owner
County
County Highway Agency

About this bridge

Nygren Road over Murder Creek is a prestressed concrete slab carrying Nygren Road over Murder Creek in Linn County, Oregon. It was built in 1962, so it is 63 years old, older 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 1,854 vehicles a day, roughly 39% of them trucks, projected to reach 2,575 by 2041. The structure is 28 ft (8.5 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNygren Road
CrossesMurder Creek
LocationDuraflake Plant
RouteCounty Highway C0316
StateOregon
Coordinates44.66493, -123.06205
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span27 ft (8.2 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,854 (2021)
Projected traffic2,575 by 2041
Trucks39%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Nygren Road over Murder Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is Nygren Road over Murder 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 October 2024.

How much traffic does Nygren Road over Murder Creek carry?

About 1,854 vehicles per day (2021 count), of which roughly 39% are trucks.

How long is Nygren Road over Murder Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.2 m) and a deck 28 ft wide.

Who owns Nygren Road over Murder Creek?

It is owned by the County Highway Agency.