US Bridges

Overland/Cole Road over I 84;COLE/OVERLAND Ic

Fair

Ada County, Idaho · In Boise · Structure no. 000000000021661

Built
1996
29 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
216 ft
2 main spans
Daily traffic
24,500
2023 count
Owner
State
State Highway Agency

About this bridge

Overland/Cole Road over I 84;COLE/OVERLAND Ic is a prestressed concrete stringer/multi-beam or girder carrying Overland/Cole Road over I 84;COLE/OVERLAND Ic in Ada County, Idaho. It was built in 1996, so it is 29 years old, younger than the Idaho average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 24,500 vehicles a day, roughly 2% of them trucks, projected to reach 36,750 by 2042. The structure is 216 ft (65.8 m) long and 472 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesOverland/Cole Road
CrossesI 84;COLE/OVERLAND Ic
LocationIn Boise
RouteCounty Highway 7563
CountyAda County
StateIdaho
Coordinates43.58999, -116.27454
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length216 ft (65.8 m)
Longest span105 ft (32 m)
Deck width472 ft (143.9 m)
Roadway width250 ft (76.2 m)
Vertical clearance over deck19 ft (5.6 m)

Traffic and service

Average daily traffic24,500 (2023)
Projected traffic36,750 by 2042
Trucks2%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Overland/Cole Road over I 84;COLE/OVERLAND Ic built?

It was built in 1996, making it 29 years old in 2025.

What condition is Overland/Cole Road over I 84;COLE/OVERLAND Ic in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2024.

How much traffic does Overland/Cole Road over I 84;COLE/OVERLAND Ic carry?

About 24,500 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is Overland/Cole Road over I 84;COLE/OVERLAND Ic?

The structure is 216 ft (65.8 m) long with a longest span of 105 ft (32 m) and a deck 472 ft wide.

Who owns Overland/Cole Road over I 84;COLE/OVERLAND Ic?

It is owned by the State Highway Agency.