US Bridges

Old HWY 99 N over Joe Leary Sl

Good

Skagit County, Washington · 1.02 MI So of Cook RD · Structure no. 086417000000000

Built
1997
28 years old
Condition
Good
inspected September 2023
Type
Culvert
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
4,635
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old HWY 99 N over Joe Leary Sl is a prestressed concrete culvert carrying Old HWY 99 N over Joe Leary Sl in Skagit County, Washington. It was built in 1997, so it is 28 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 4,635 vehicles a day, roughly 12% of them trucks, projected to reach 8,371 by 2041. The structure is 26 ft (7.8 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesOld HWY 99 N
CrossesJoe Leary Sl
Location1.02 MI So of Cook RD
RouteCity Street 50510
Coordinates48.49317, -122.33506
Functional classUrban Minor Arterial

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 inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72 US tons

Structure

Structure typeCulvert
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width40 ft (12.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,635 (2021)
Projected traffic8,371 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Old HWY 99 N over Joe Leary Sl built?

It was built in 1997, making it 28 years old in 2025.

What condition is Old HWY 99 N over Joe Leary Sl 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 2023.

How much traffic does Old HWY 99 N over Joe Leary Sl carry?

About 4,635 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Old HWY 99 N over Joe Leary Sl?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 40 ft wide.

Who owns Old HWY 99 N over Joe Leary Sl?

It is owned by the City or Municipal Highway Agency.