US Bridges

SH 55 over Mcleod Way

Good

Boise County, Idaho · 13.7 NW Boise Wcl · Structure no. 000000000014758

Built
2024
1 years old
Condition
Good
inspected January 2025
Type
Arch - Deck
Concrete
Length
66 ft
1 main span
Daily traffic
10,500
2023 count
Owner
State
State Highway Agency

About this bridge

SH 55 over Mcleod Way is a concrete arch - deck carrying SH 55 over Mcleod Way in Boise County, Idaho. It was built in 2024, so it is 1 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 10,500 vehicles a day, roughly 7% of them trucks, projected to reach 15,750 by 2042. The structure is 66 ft (20.1 m) long and 96 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesSH 55
CrossesMcleod Way
Location13.7 NW Boise Wcl
RouteState Highway 55
CountyBoise County
StateIdaho
Coordinates43.80034, -116.26508
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
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length66 ft (20.1 m)
Longest span66 ft (20.1 m)
Deck width96 ft (29.2 m)
Roadway width78 ft (23.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic15,750 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 55 over Mcleod Way built?

It was built in 2024, making it 1 years old in 2025.

What condition is SH 55 over Mcleod Way 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 January 2025.

How much traffic does SH 55 over Mcleod Way carry?

About 10,500 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SH 55 over Mcleod Way?

The structure is 66 ft (20.1 m) long with a longest span of 66 ft (20.1 m) and a deck 96 ft wide.

Who owns SH 55 over Mcleod Way?

It is owned by the State Highway Agency.