US Bridges

Donna RD over Mcgowan Creek

Fair

Lane County, Oregon · 025 SW Marcola · Structure no. 39C169195800023

Built
1978
47 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
56 ft
2 main spans
Daily traffic
925
2020 count
Owner
County
County Highway Agency

About this bridge

Donna RD over Mcgowan Creek is a prestressed concrete slab carrying Donna RD over Mcgowan Creek in Lane County, Oregon. It was built in 1978, so it is 47 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 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 925 vehicles a day, roughly 10% of them trucks, projected to reach 1,057 by 2025. The structure is 56 ft (17.1 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesDonna RD
CrossesMcgowan Creek
Location025 SW Marcola
RouteCounty Highway C1958
CountyLane County
StateOregon
Coordinates44.14487, -122.91596
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span28 ft (8.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic925 (2020)
Projected traffic1,057 by 2025
Trucks10%
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 Donna RD over Mcgowan Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Donna 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 Donna RD over Mcgowan Creek carry?

About 925 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Donna RD over Mcgowan Creek?

The structure is 56 ft (17.1 m) long with a longest span of 28 ft (8.5 m) and a deck 28 ft wide.

Who owns Donna RD over Mcgowan Creek?

It is owned by the County Highway Agency.