US Bridges

Sma 8213;MIDDLETON over Elija Drain

Fair

Canyon County, Idaho · In Nampa · Structure no. 000000000026965

Built
1970
55 years old, rebuilt 1977
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
10,500
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Sma 8213;MIDDLETON over Elija Drain is a prestressed concrete tee beam carrying Sma 8213;MIDDLETON over Elija Drain in Canyon County, Idaho. It was built in 1970 and reconstructed in 1977, so it is 55 years old, older 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 10,500 vehicles a day, projected to reach 15,750 by 2042. The structure is 60 ft (18.3 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSma 8213;MIDDLETON
CrossesElija Drain
LocationIn Nampa
RouteCity Street 8213
CountyCanyon County
StateIdaho
Coordinates43.59967, -116.61322
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2023)
Projected traffic15,750 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$986,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sma 8213;MIDDLETON over Elija Drain built?

It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1977.

What condition is Sma 8213;MIDDLETON over Elija Drain 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 February 2023.

How much traffic does Sma 8213;MIDDLETON over Elija Drain carry?

About 10,500 vehicles per day (2023 count).

How long is Sma 8213;MIDDLETON over Elija Drain?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 40 ft wide.

Who owns Sma 8213;MIDDLETON over Elija Drain?

It is owned by the City or Municipal Highway Agency.