US Bridges

County RD 124 over South Myrtle Creek

FairPosted for load

Douglas County, Oregon · 0.1 MI SE of Myrtle Creek · Structure no. 19C220012400038

Built
1939
86 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Wood or Timber
Length
72 ft
1 main span
Daily traffic
260
2020 count
Owner
County
County Highway Agency

About this bridge

County RD 124 over South Myrtle Creek is a wood or timber truss - thru carrying County RD 124 over South Myrtle Creek in Douglas County, Oregon. It was built in 1939, so it is 86 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 260 vehicles a day, roughly 1% of them trucks, projected to reach 295 by 2025. The structure is 72 ft (21.9 m) long and 17 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCounty RD 124
CrossesSouth Myrtle Creek
Location0.1 MI SE of Myrtle Creek
RouteCounty Highway C0124
CountyDouglas County
StateOregon
Coordinates43.01692, -123.27455
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating14.7 US tons
Inventory rating11.5 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1 (+2 approach)
Design loadH 15
Structure length72 ft (21.9 m)
Longest span42 ft (12.8 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck10 ft (3.1 m)

Traffic and service

Average daily traffic260 (2020)
Projected traffic295 by 2025
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$479,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 124 over South Myrtle Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is County RD 124 over South Myrtle 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 June 2024.

How much traffic does County RD 124 over South Myrtle Creek carry?

About 260 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is County RD 124 over South Myrtle Creek?

The structure is 72 ft (21.9 m) long with a longest span of 42 ft (12.8 m) and a deck 17 ft wide.

Who owns County RD 124 over South Myrtle Creek?

It is owned by the County Highway Agency.