US Bridges

Lakeshore Drive over Thompson Creek

Good

Josephine County, Oregon · T38S-R7W-S17 · Structure no. 520020520000377

Built
1974
51 years old
Condition
Good
inspected October 2024
Type
Slab
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
2,469
2020 count
Owner
County
County Highway Agency

About this bridge

Lakeshore Drive over Thompson Creek is a prestressed concrete slab carrying Lakeshore Drive over Thompson Creek in Josephine County, Oregon. It was built in 1974, so it is 51 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 2,469 vehicles a day, roughly 10% of them trucks, projected to reach 2,981 by 2025. The structure is 60 ft (18.3 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesLakeshore Drive
CrossesThompson Creek
LocationT38S-R7W-S17
RouteCounty Highway C5200
StateOregon
Coordinates42.26454, -123.55179
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span58 ft (17.7 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,469 (2020)
Projected traffic2,981 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Lakeshore Drive over Thompson Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is Lakeshore Drive over Thompson Creek 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 Thompson Creek carry?

About 2,469 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Lakeshore Drive over Thompson Creek?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.7 m) and a deck 32 ft wide.

Who owns Lakeshore Drive over Thompson Creek?

It is owned by the County Highway Agency.