US Bridges

Pattee Road over Berwick Creek

Good

Lewis County, Washington · 5 W Chehalis · Structure no. 088272000000000

Built
2007
18 years old
Condition
Good
inspected March 2024
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
52
2021 count
Owner
County
County Highway Agency

About this bridge

Pattee Road over Berwick Creek is a steel culvert carrying Pattee Road over Berwick Creek in Lewis County, Washington. It was built in 2007, so it is 18 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 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 52 vehicles a day, roughly 17% of them trucks, projected to reach 94 by 2041. The structure is 21 ft (6.4 m) long and 37 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesPattee Road
CrossesBerwick Creek
Location5 W Chehalis
RouteCounty Highway 40044
Coordinates46.64194, -122.86083
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.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
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 geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span21 ft (6.4 m)
Deck width37 ft (11.3 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52 (2021)
Projected traffic94 by 2041
Trucks17%
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$259,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pattee Road over Berwick Creek built?

It was built in 2007, making it 18 years old in 2025.

What condition is Pattee Road over Berwick 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 March 2024.

How much traffic does Pattee Road over Berwick Creek carry?

About 52 vehicles per day (2021 count), of which roughly 17% are trucks.

How long is Pattee Road over Berwick Creek?

The structure is 21 ft (6.4 m) long with a longest span of 21 ft (6.4 m) and a deck 37 ft wide.

Who owns Pattee Road over Berwick Creek?

It is owned by the County Highway Agency.