US Bridges

Jasper-Lowell RD over Dexter Lake

Fair

Lane County, Oregon · 001 MI So JCT HWY58/6220 · Structure no. 39C631622001152

Built
1980
45 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
421 ft
4 main spans
Daily traffic
2,982
2020 count
Owner
County
County Highway Agency

About this bridge

Jasper-Lowell RD over Dexter Lake is a prestressed concrete box beam or girders - multiple carrying Jasper-Lowell RD over Dexter Lake in Lane County, Oregon. It was built in 1980, so it is 45 years old, younger 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 5 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 2,982 vehicles a day, roughly 10% of them trucks, projected to reach 3,092 by 2025. The structure is 421 ft (128.3 m) long and 34 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesJasper-Lowell RD
CrossesDexter Lake
Location001 MI So JCT HWY58/6220
RouteCounty Highway A0462
CountyLane County
StateOregon
Coordinates43.90919, -122.77929
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating28.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckOther
Main spans4
Design loadHS 20
Structure length421 ft (128.3 m)
Longest span105 ft (32 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,982 (2020)
Projected traffic3,092 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Jasper-Lowell RD over Dexter Lake built?

It was built in 1980, making it 45 years old in 2025.

What condition is Jasper-Lowell RD over Dexter Lake 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 October 2024.

How much traffic does Jasper-Lowell RD over Dexter Lake carry?

About 2,982 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Jasper-Lowell RD over Dexter Lake?

The structure is 421 ft (128.3 m) long with a longest span of 105 ft (32 m) and a deck 34 ft wide.

Who owns Jasper-Lowell RD over Dexter Lake?

It is owned by the County Highway Agency.