US Bridges

Front Street NE over Mill Creek

Fair

Marion County, Oregon · .25 MI N Marion Sq. Park · Structure no. 470202000000000

Built
1913
112 years old
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete
Length
40 ft
1 main span
Daily traffic
2,921
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Front Street NE over Mill Creek is a concrete arch - deck carrying Front Street NE over Mill Creek in Marion County, Oregon. It was built in 1913, so it is 112 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 2,921 vehicles a day, roughly 5% of them trucks, projected to reach 3,257 by 2025. The structure is 40 ft (12.2 m) long and 38 ft wide.

CarriesFront Street NE
CrossesMill Creek
Location.25 MI N Marion Sq. Park
RouteCity Street C0000
StateOregon
Coordinates44.95074, -123.03719
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 rating98.9 US tons
Inventory rating76.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadRailroad
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width38 ft (11.7 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,921 (2020)
Projected traffic3,257 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and railroad
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Front Street NE over Mill Creek built?

It was built in 1913, making it 112 years old in 2025.

What condition is Front Street NE over Mill 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 August 2023.

How much traffic does Front Street NE over Mill Creek carry?

About 2,921 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Front Street NE over Mill Creek?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 38 ft wide.

Who owns Front Street NE over Mill Creek?

It is owned by the City or Municipal Highway Agency.