US Bridges

Halo Trail RD #63 over Yoncalla Creek Overflow

Fair

Douglas County, Oregon · 1.0 MI N of Yoncalla · Structure no. 19C108006300009

Built
1977
48 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
508
2020 count
Owner
County
County Highway Agency

About this bridge

Halo Trail RD #63 over Yoncalla Creek Overflow is a steel stringer/multi-beam or girder carrying Halo Trail RD #63 over Yoncalla Creek Overflow in Douglas County, Oregon. It was built in 1977, so it is 48 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 508 vehicles a day, roughly 5% of them trucks, projected to reach 573 by 2025. The structure is 40 ft (12.2 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHalo Trail RD #63
CrossesYoncalla Creek Overflow
Location1.0 MI N of Yoncalla
RouteCounty Highway C0063
StateOregon
Coordinates43.60411, -123.28063
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.4 US tons
Inventory rating27.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic508 (2020)
Projected traffic573 by 2025
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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 Halo Trail RD #63 over Yoncalla Creek Overflow built?

It was built in 1977, making it 48 years old in 2025.

What condition is Halo Trail RD #63 over Yoncalla Creek Overflow 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 October 2024.

How much traffic does Halo Trail RD #63 over Yoncalla Creek Overflow carry?

About 508 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Halo Trail RD #63 over Yoncalla Creek Overflow?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 24 ft wide.

Who owns Halo Trail RD #63 over Yoncalla Creek Overflow?

It is owned by the County Highway Agency.