US Bridges

County RD 102 over Mckay Creek

Good

Crook County, Oregon · 002 MI N French RD Int · Structure no. 15497A102000438

Built
1974
51 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
577
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 102 over Mckay Creek is a prestressed concrete slab carrying County RD 102 over Mckay Creek in Crook County, Oregon. It was built in 1974, so it is 51 years old, older 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 577 vehicles a day, roughly 20% of them trucks, projected to reach 662 by 2025. The structure is 48 ft (14.6 m) long and 36 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCounty RD 102
CrossesMckay Creek
Location002 MI N French RD Int
RouteCounty Highway 0B373
StateOregon
Coordinates44.36556, -120.84664
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic577 (2020)
Projected traffic662 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County RD 102 over Mckay Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is County RD 102 over Mckay 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 August 2024.

How much traffic does County RD 102 over Mckay Creek carry?

About 577 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is County RD 102 over Mckay Creek?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 36 ft wide.

Who owns County RD 102 over Mckay Creek?

It is owned by the County Highway Agency.