US Bridges

Elder Mill Road over Trail Creek

Good

Jackson County, Oregon · 1.86 Milepost · Structure no. 23747 501 00186

Built
2021
4 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
165
2020 count
Owner
County
County Highway Agency

About this bridge

Elder Mill Road over Trail Creek is a prestressed concrete slab carrying Elder Mill Road over Trail Creek in Jackson County, Oregon. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 165 vehicles a day, roughly 10% of them trucks, projected to reach 190 by 2025. The structure is 60 ft (18.3 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesElder Mill Road
CrossesTrail Creek
Location1.86 Milepost
RouteCounty Highway C0501
StateOregon
Coordinates42.72313, -122.83517
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2020)
Projected traffic190 by 2025
Trucks10%
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 Elder Mill Road over Trail Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Elder Mill Road over Trail 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 Elder Mill Road over Trail Creek carry?

About 165 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Elder Mill Road over Trail Creek?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns Elder Mill Road over Trail Creek?

It is owned by the County Highway Agency.