US Bridges

Chambers Street over Coos Bay Line of UPRR

Fair

Lane County, Oregon · North Chambers Street · Structure no. 39C186147500000

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
1 main span
Daily traffic
36,899
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Chambers Street over Coos Bay Line of UPRR is a prestressed concrete stringer/multi-beam or girder carrying Chambers Street over Coos Bay Line of UPRR in Lane County, Oregon. It was built in 1988, so it is 37 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 36,899 vehicles a day, roughly 15% of them trucks, projected to reach 42,149 by 2025. The structure is 123 ft (37.5 m) long and 71 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesChambers Street
CrossesCoos Bay Line of UPRR
LocationNorth Chambers Street
RouteCity Street 1475
StateOregon
Coordinates44.06014, -123.11737
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable 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 rating98 US tons
Inventory rating65 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span121 ft (36.9 m)
Deck width71 ft (21.6 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,899 (2020)
Projected traffic42,149 by 2025
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Chambers Street over Coos Bay Line of UPRR built?

It was built in 1988, making it 37 years old in 2025.

What condition is Chambers Street over Coos Bay Line of UPRR 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 May 2023.

How much traffic does Chambers Street over Coos Bay Line of UPRR carry?

About 36,899 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Chambers Street over Coos Bay Line of UPRR?

The structure is 123 ft (37.5 m) long with a longest span of 121 ft (36.9 m) and a deck 71 ft wide.

Who owns Chambers Street over Coos Bay Line of UPRR?

It is owned by the City or Municipal Highway Agency.