US Bridges

Jefferson Street over Newton Creek

Fair

Douglas County, Oregon · 0.2 N of S Umpqua River · Structure no. 26T07 000 00000

Built
1971
54 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
1,143
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jefferson Street over Newton Creek is a steel stringer/multi-beam or girder carrying Jefferson Street over Newton Creek in Douglas 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 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 1,143 vehicles a day, roughly 2% of them trucks, projected to reach 1,293 by 2025. The structure is 30 ft (9.1 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesJefferson Street
CrossesNewton Creek
Location0.2 N of S Umpqua River
RouteCity Street 3175
StateOregon
Coordinates43.22557, -123.38183
Functional classUrban Minor 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
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 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 rating51.8 US tons
Inventory rating40 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,143 (2020)
Projected traffic1,293 by 2025
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 Jefferson Street over Newton Creek built?

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

What condition is Jefferson Street over Newton Creek 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 April 2023.

How much traffic does Jefferson Street over Newton Creek carry?

About 1,143 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Jefferson Street over Newton Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 31 ft wide.

Who owns Jefferson Street over Newton Creek?

It is owned by the City or Municipal Highway Agency.