US Bridges

Gar Swanson Drive over Port of Morrow RR Spur

Good

Morrow County, Oregon · Port of Morrow · Structure no. 23963 000 00037

Built
2019
6 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
107 ft
1 main span
Daily traffic
10
2015 count
Owner
State
Other State Agency

About this bridge

Gar Swanson Drive over Port of Morrow RR Spur is a prestressed concrete box beam or girders - multiple carrying Gar Swanson Drive over Port of Morrow RR Spur in Morrow County, Oregon. It was built in 2019, so it is 6 years old, younger 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 10 vehicles a day, roughly 20% of them trucks, projected to reach 15 by 2030. The structure is 107 ft (32.5 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGar Swanson Drive
CrossesPort of Morrow RR Spur
LocationPort of Morrow
RouteCity Street 0
StateOregon
Coordinates45.85856, -119.63178
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length107 ft (32.5 m)
Longest span107 ft (32.5 m)
Deck width40 ft (12.2 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2015)
Projected traffic15 by 2030
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther State Agency
Maintained byOther State Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gar Swanson Drive over Port of Morrow RR Spur built?

It was built in 2019, making it 6 years old in 2025.

What condition is Gar Swanson Drive over Port of Morrow RR Spur 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 February 2024.

How much traffic does Gar Swanson Drive over Port of Morrow RR Spur carry?

About 10 vehicles per day (2015 count), of which roughly 20% are trucks.

How long is Gar Swanson Drive over Port of Morrow RR Spur?

The structure is 107 ft (32.5 m) long with a longest span of 107 ft (32.5 m) and a deck 40 ft wide.

Who owns Gar Swanson Drive over Port of Morrow RR Spur?

It is owned by the Other State Agency.