US Bridges

Ranch Creek Road over Mill Creek

Good

Chelan County, Washington · 0.08 W JCT US-97 · Structure no. 089192000000000

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
54
2021 count
Owner
County
County Highway Agency

About this bridge

Ranch Creek Road over Mill Creek is a steel culvert carrying Ranch Creek Road over Mill Creek in Chelan County, Washington. It was built in 2020, so it is 5 years old, younger than the Washington average of 49.8 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 54 vehicles a day, roughly 13% of them trucks, projected to reach 65 by 2046. The structure is 26 ft (7.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesRanch Creek Road
CrossesMill Creek
Location0.08 W JCT US-97
RouteCounty Highway 29980
Coordinates47.51113, -120.63206
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length26 ft (7.8 m)
Longest span26 ft (7.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic54 (2021)
Projected traffic65 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$291,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ranch Creek Road over Mill Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Ranch Creek Road over Mill 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 September 2024.

How much traffic does Ranch Creek Road over Mill Creek carry?

About 54 vehicles per day (2021 count), of which roughly 13% are trucks.

How long is Ranch Creek Road over Mill Creek?

The structure is 26 ft (7.8 m) long with a longest span of 26 ft (7.8 m).

Who owns Ranch Creek Road over Mill Creek?

It is owned by the County Highway Agency.