US Bridges

High Street NE over Mill Creek

Fair

Marion County, Oregon · 1 Blk S/O Liberty NE · Structure no. 470208000 00000

Built
1928
97 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Concrete
Length
57 ft
1 main span
Daily traffic
12,020
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

High Street NE over Mill Creek is a concrete tee beam carrying High Street NE over Mill Creek in Marion County, Oregon. It was built in 1928, so it is 97 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 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 12,020 vehicles a day, roughly 3% of them trucks, projected to reach 15,711 by 2025. The structure is 57 ft (17.3 m) long and 99 ft wide.

CarriesHigh Street NE
CrossesMill Creek
Location1 Blk S/O Liberty NE
RouteCity Street C0000
StateOregon
Coordinates44.94791, -123.03308
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadRailroad
Structure length57 ft (17.3 m)
Longest span30 ft (9.1 m)
Deck width99 ft (30.3 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,020 (2020)
Projected traffic15,711 by 2025
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$200,000
NavigationNo navigation control on waterway

Frequently asked questions

When was High Street NE over Mill Creek built?

It was built in 1928, making it 97 years old in 2025.

What condition is High 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 High Street NE over Mill Creek carry?

About 12,020 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is High Street NE over Mill Creek?

The structure is 57 ft (17.3 m) long with a longest span of 30 ft (9.1 m) and a deck 99 ft wide.

Who owns High Street NE over Mill Creek?

It is owned by the City or Municipal Highway Agency.