US Bridges

Marcola RD over Shotgun Creek

Fair

Lane County, Oregon · 160 MI NE Springfield · Structure no. 14637A190001619

Built
1964
61 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
133 ft
3 main spans
Daily traffic
3,106
2020 count
Owner
County
County Highway Agency

About this bridge

Marcola RD over Shotgun Creek is a prestressed concrete stringer/multi-beam or girder carrying Marcola RD over Shotgun Creek in Lane County, Oregon. It was built in 1964, so it is 61 years old, older 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 3,106 vehicles a day, roughly 15% of them trucks, projected to reach 3,526 by 2025. The structure is 133 ft (40.5 m) long and 35 ft wide. If it were closed, the detour would be 62.1 mi (100 km).

Location

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CarriesMarcola RD
CrossesShotgun Creek
Location160 MI NE Springfield
RouteCounty Highway A0464
CountyLane County
StateOregon
Coordinates44.213, -122.82927
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.8 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span50 ft (15.2 m)
Deck width35 ft (10.6 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,106 (2020)
Projected traffic3,526 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed62.1 mi (100 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Marcola RD over Shotgun Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Marcola RD over Shotgun Creek 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 Marcola RD over Shotgun Creek carry?

About 3,106 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Marcola RD over Shotgun Creek?

The structure is 133 ft (40.5 m) long with a longest span of 50 ft (15.2 m) and a deck 35 ft wide.

Who owns Marcola RD over Shotgun Creek?

It is owned by the County Highway Agency.