US Bridges

Spring Lake RD over Spr.Lake Rd/Drain Ditch

FairPosted for load

Klamath County, Oregon · 023 MI No of Lower Lk RD · Structure no. 18C020087600231

Built
1971
54 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
71 ft
4 main spans
Daily traffic
721
2020 count
Owner
County
County Highway Agency

About this bridge

Spring Lake RD over Spr.Lake Rd/Drain Ditch is a wood or timber stringer/multi-beam or girder carrying Spring Lake RD over Spr.Lake Rd/Drain Ditch in Klamath County, Oregon. It was built in 1971, so it is 54 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 721 vehicles a day, roughly 10% of them trucks, projected to reach 756 by 2025. The structure is 71 ft (21.6 m) long and 30 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesSpring Lake RD
CrossesSpr.Lake Rd/Drain Ditch
Location023 MI No of Lower Lk RD
RouteCounty Highway 0B303
StateOregon
Coordinates42.14151, -121.74248
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be 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 rating20.4 US tons
Inventory rating15.8 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length71 ft (21.6 m)
Longest span22 ft (6.7 m)
Deck width30 ft (9 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic721 (2020)
Projected traffic756 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Spring Lake RD over Spr.Lake Rd/Drain Ditch built?

It was built in 1971, making it 54 years old in 2025.

What condition is Spring Lake RD over Spr.Lake Rd/Drain Ditch 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 March 2023.

How much traffic does Spring Lake RD over Spr.Lake Rd/Drain Ditch carry?

About 721 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Spring Lake RD over Spr.Lake Rd/Drain Ditch?

The structure is 71 ft (21.6 m) long with a longest span of 22 ft (6.7 m) and a deck 30 ft wide.

Who owns Spring Lake RD over Spr.Lake Rd/Drain Ditch?

It is owned by the County Highway Agency.