US Bridges

Marcola RD over Mcgowan Creek

Fair

Lane County, Oregon · 090 MI NE Springfield · Structure no. 14688A190000914

Built
1972
53 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
57 ft
1 main span
Daily traffic
6,576
2020 count
Owner
County
County Highway Agency

About this bridge

Marcola RD over Mcgowan Creek is a prestressed concrete slab carrying Marcola RD over Mcgowan Creek in Lane County, Oregon. It was built in 1972, so it is 53 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 5 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 6,576 vehicles a day, roughly 30% of them trucks, projected to reach 7,326 by 2025. The structure is 57 ft (17.4 m) long and 59 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMarcola RD
CrossesMcgowan Creek
Location090 MI NE Springfield
RouteCounty Highway A0464
CountyLane County
StateOregon
Coordinates44.14252, -122.91426
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length57 ft (17.4 m)
Longest span57 ft (17.4 m)
Deck width59 ft (17.9 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,576 (2020)
Projected traffic7,326 by 2025
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Marcola RD over Mcgowan Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Marcola RD over Mcgowan 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 Mcgowan Creek carry?

About 6,576 vehicles per day (2020 count), of which roughly 30% are trucks.

How long is Marcola RD over Mcgowan Creek?

The structure is 57 ft (17.4 m) long with a longest span of 57 ft (17.4 m) and a deck 59 ft wide.

Who owns Marcola RD over Mcgowan Creek?

It is owned by the County Highway Agency.