US Bridges

Harbor Isles Blvd over Harbor Isle G C Access

Fair

Klamath County, Oregon · 004 East of Klamath Lake · Structure no. 35B001 00000

Built
1982
43 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
594
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harbor Isles Blvd over Harbor Isle G C Access is a prestressed concrete slab carrying Harbor Isles Blvd over Harbor Isle G C Access in Klamath County, Oregon. It was built in 1982, so it is 43 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 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 594 vehicles a day, roughly 10% of them trucks, projected to reach 648 by 2025. The structure is 50 ft (15.2 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesHarbor Isles Blvd
CrossesHarbor Isle G C Access
Location004 East of Klamath Lake
RouteCounty Highway C0000
StateOregon
Coordinates42.24967, -121.80882
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating57.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width40 ft (12.2 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic594 (2020)
Projected traffic648 by 2025
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Harbor Isles Blvd over Harbor Isle G C Access built?

It was built in 1982, making it 43 years old in 2025.

What condition is Harbor Isles Blvd over Harbor Isle G C Access 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 Harbor Isles Blvd over Harbor Isle G C Access carry?

About 594 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Harbor Isles Blvd over Harbor Isle G C Access?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 40 ft wide.

Who owns Harbor Isles Blvd over Harbor Isle G C Access?

It is owned by the City or Municipal Highway Agency.