US Bridges

FAS 1027 over Bn RR Tower Ave Northup

GoodPosted for load

Lewis County, Washington · 00.0 S Jct. Chestnu · Structure no. 085087000000000

Built
1971
54 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
870 ft
26 main spans
Daily traffic
5,740
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAS 1027 over Bn RR Tower Ave Northup is a concrete continuous slab carrying FAS 1027 over Bn RR Tower Ave Northup in Lewis County, Washington. It was built in 1971, so it is 54 years old, older 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. Its operating status is: posted for load restriction.

It carries about 5,740 vehicles a day, roughly 11% of them trucks, projected to reach 9,150 by 2043. The structure is 870 ft (265.2 m) long and 33 ft wide.

CarriesFAS 1027
CrossesBn RR Tower Ave Northup
Location00.0 S Jct. Chestnu
RouteCity Street 201
Coordinates46.70839, -122.95786
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating31 US tons
Inventory rating18 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans26
Design loadHS 20
Structure length870 ft (265.2 m)
Longest span70 ft (21.3 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,740 (2022)
Projected traffic9,150 by 2043
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was FAS 1027 over Bn RR Tower Ave Northup built?

It was built in 1971, making it 54 years old in 2025.

What condition is FAS 1027 over Bn RR Tower Ave Northup 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 November 2023.

How much traffic does FAS 1027 over Bn RR Tower Ave Northup carry?

About 5,740 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is FAS 1027 over Bn RR Tower Ave Northup?

The structure is 870 ft (265.2 m) long with a longest span of 70 ft (21.3 m) and a deck 33 ft wide.

Who owns FAS 1027 over Bn RR Tower Ave Northup?

It is owned by the City or Municipal Highway Agency.