US Bridges

Summit ST over Over Aband RR

Fair

Jackson County, Iowa · 000000000 · Structure no. 000000000007655

Built
1973
52 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Prestressed Concrete
Length
128 ft
3 main spans
Daily traffic
1,785
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Summit ST over Over Aband RR is a prestressed concrete tee beam carrying Summit ST over Over Aband RR in Jackson County, Iowa. It was built in 1973, so it is 52 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 1,785 vehicles a day, projected to reach 1,785 by 2043. The structure is 128 ft (39 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSummit ST
CrossesOver Aband RR
Location000000000
RouteCity Street 0
StateIowa
Coordinates42.06185, -90.6527
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length128 ft (39 m)
Longest span43 ft (13.1 m)
Deck width41 ft (12.5 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,785 (2021)
Projected traffic1,785 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Summit ST over Over Aband RR built?

It was built in 1973, making it 52 years old in 2025.

What condition is Summit ST over Over Aband RR 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 March 2023.

How much traffic does Summit ST over Over Aband RR carry?

About 1,785 vehicles per day (2021 count).

How long is Summit ST over Over Aband RR?

The structure is 128 ft (39 m) long with a longest span of 43 ft (13.1 m) and a deck 41 ft wide.

Who owns Summit ST over Over Aband RR?

It is owned by the City or Municipal Highway Agency.