US Bridges

Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs

Good

Canyon County, Idaho · 3.2 W. Nampa Wcl · Structure no. 000000000019711

Built
2021
4 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
225 ft
2 main spans
Daily traffic
8,900
2023 count
Owner
State
State Highway Agency

About this bridge

Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs is a concrete stringer/multi-beam or girder carrying Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs in Canyon County, Idaho. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 8,900 vehicles a day, roughly 4% of them trucks, projected to reach 13,350 by 2042. The structure is 225 ft (68.6 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesStp 8213;MIDDLETON
CrossesI 84; Middleton Rd. Gs
Location3.2 W. Nampa Wcl
RouteCounty Highway 8213
CountyCanyon County
StateIdaho
Coordinates43.6215, -116.61325
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.1 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length225 ft (68.6 m)
Longest span113 ft (34.4 m)
Deck width48 ft (14.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,900 (2023)
Projected traffic13,350 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs built?

It was built in 2021, making it 4 years old in 2025.

What condition is Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs 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 April 2023.

How much traffic does Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs carry?

About 8,900 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs?

The structure is 225 ft (68.6 m) long with a longest span of 113 ft (34.4 m) and a deck 48 ft wide.

Who owns Stp 8213;MIDDLETON over I 84; Middleton Rd. Gs?

It is owned by the State Highway Agency.