US Bridges

Drews Road over Drainage Ditch

Fair

Klamath County, Oregon · 0855 MI E of Sprague R RD · Structure no. 35C127059900855

Built
1973
52 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
24 ft
1 main span
Daily traffic
137
2020 count
Owner
County
County Highway Agency

About this bridge

Drews Road over Drainage Ditch is a prestressed concrete slab carrying Drews Road over Drainage Ditch in Klamath County, Oregon. It was built in 1973, so it is 52 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.

It carries about 137 vehicles a day, roughly 10% of them trucks, projected to reach 147 by 2025. The structure is 24 ft (7.3 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesDrews Road
CrossesDrainage Ditch
Location0855 MI E of Sprague R RD
RouteCounty Highway C0599
StateOregon
Coordinates42.47098, -121.34907
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span23 ft (7 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic137 (2020)
Projected traffic147 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Drews Road over Drainage Ditch built?

It was built in 1973, making it 52 years old in 2025.

What condition is Drews Road over Drainage 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 July 2024.

How much traffic does Drews Road over Drainage Ditch carry?

About 137 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Drews Road over Drainage Ditch?

The structure is 24 ft (7.3 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.

Who owns Drews Road over Drainage Ditch?

It is owned by the County Highway Agency.