US Bridges

SE Crystal Lake DR over Mill Race

Fair

Benton County, Oregon · .2 Mile E of HWY 99W · Structure no. 07T32 000 00000

Built
1985
40 years old
Condition
Fair
inspected July 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
3,017
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

SE Crystal Lake DR over Mill Race is a prestressed concrete slab carrying SE Crystal Lake DR over Mill Race in Benton County, Oregon. It was built in 1985, so it is 40 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 3,017 vehicles a day, roughly 15% of them trucks, projected to reach 5,082 by 2040. The structure is 38 ft (11.6 m) long and 48 ft wide.

CarriesSE Crystal Lake DR
CrossesMill Race
Location.2 Mile E of HWY 99W
RouteCity Street 0
StateOregon
Coordinates44.55195, -123.26275
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
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 rating68.2 US tons
Inventory rating52.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span34 ft (10.4 m)
Deck width48 ft (14.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,017 (2020)
Projected traffic5,082 by 2040
Trucks15%
Lanes on structure2
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 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 SE Crystal Lake DR over Mill Race built?

It was built in 1985, making it 40 years old in 2025.

What condition is SE Crystal Lake DR over Mill Race 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 July 2024.

How much traffic does SE Crystal Lake DR over Mill Race carry?

About 3,017 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is SE Crystal Lake DR over Mill Race?

The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 48 ft wide.

Who owns SE Crystal Lake DR over Mill Race?

It is owned by the City or Municipal Highway Agency.