US Bridges

County RD 149 over North Myrtle Creek

Good

Douglas County, Oregon · 8.0 MI NE Myrtle Cr. · Structure no. 19C084 149 005

Built
1990
35 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
74
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 149 over North Myrtle Creek is a prestressed concrete slab carrying County RD 149 over North Myrtle Creek in Douglas County, Oregon. It was built in 1990, so it is 35 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 74 vehicles a day, projected to reach 84 by 2025. The structure is 63 ft (19.2 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCounty RD 149
CrossesNorth Myrtle Creek
Location8.0 MI NE Myrtle Cr.
RouteCounty Highway C0149
StateOregon
Coordinates43.08804, -123.16729
Functional classRural Local

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating89.6 US tons
Inventory rating69.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74 (2020)
Projected traffic84 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 149 over North Myrtle Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is County RD 149 over North Myrtle 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 June 2023.

How much traffic does County RD 149 over North Myrtle Creek carry?

About 74 vehicles per day (2020 count).

How long is County RD 149 over North Myrtle Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns County RD 149 over North Myrtle Creek?

It is owned by the County Highway Agency.