US Bridges

Lakeshore Drive over Spillway at Lake Selmac

Good

Josephine County, Oregon · T38S-R7W-S18 Josephine CO · Structure no. 22427 000 00000

Built
1940
85 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
1,792
2020 count
Owner
County
County Highway Agency

About this bridge

Lakeshore Drive over Spillway at Lake Selmac is a prestressed concrete slab carrying Lakeshore Drive over Spillway at Lake Selmac in Josephine County, Oregon. It was built in 1940, so it is 85 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 1,792 vehicles a day, roughly 10% of them trucks, projected to reach 2,102 by 2025. The structure is 48 ft (14.6 m) long and 40 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesLakeshore Drive
CrossesSpillway at Lake Selmac
LocationT38S-R7W-S18 Josephine CO
RouteCounty Highway A3210
CountyJosephine County
StateOregon
Coordinates42.26483, -123.57796
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length48 ft (14.6 m)
Longest span48 ft (14.6 m)
Deck width40 ft (12.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,792 (2020)
Projected traffic2,102 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$195,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lakeshore Drive over Spillway at Lake Selmac built?

It was built in 1940, making it 85 years old in 2025.

What condition is Lakeshore Drive over Spillway at Lake Selmac 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 Lakeshore Drive over Spillway at Lake Selmac carry?

About 1,792 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Lakeshore Drive over Spillway at Lake Selmac?

The structure is 48 ft (14.6 m) long with a longest span of 48 ft (14.6 m) and a deck 40 ft wide.

Who owns Lakeshore Drive over Spillway at Lake Selmac?

It is owned by the County Highway Agency.