US Bridges

Locust St. over Whychus Creek

Good

Deschutes County, Oregon · 0.5 Miles SE of Sisters · Structure no. 18164 118900151

Built
1995
30 years old
Condition
Good
inspected February 2023
Type
Slab
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
531
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Locust St. over Whychus Creek is a prestressed concrete slab carrying Locust St. over Whychus Creek in Deschutes County, Oregon. It was built in 1995, so it is 30 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 531 vehicles a day, roughly 3% of them trucks, projected to reach 626 by 2025. The structure is 55 ft (16.8 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesLocust St.
CrossesWhychus Creek
Location0.5 Miles SE of Sisters
RouteCounty Highway 1189
StateOregon
Coordinates44.28804, -121.54387
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating58.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length55 ft (16.8 m)
Longest span54 ft (16.5 m)
Deck width40 ft (12.2 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic531 (2020)
Projected traffic626 by 2025
Trucks3%
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 Locust St. over Whychus Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is Locust St. over Whychus Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does Locust St. over Whychus Creek carry?

About 531 vehicles per day (2020 count), of which roughly 3% are trucks.

How long is Locust St. over Whychus Creek?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.5 m) and a deck 40 ft wide.

Who owns Locust St. over Whychus Creek?

It is owned by the City or Municipal Highway Agency.