US Bridges

Melrose Ave over Iais RR

Fair

Johnson County, Iowa · 079061600 · Structure no. 000000000006310

Built
1997
28 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
3 main spans
Daily traffic
12,001
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Melrose Ave over Iais RR is a steel continuous stringer/multi-beam or girder carrying Melrose Ave over Iais RR in Johnson County, Iowa. It was built in 1997, so it is 28 years old, younger 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 12,001 vehicles a day, projected to reach 12,001 by 2043. The structure is 206 ft (62.8 m) long and 64 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMelrose Ave
CrossesIais RR
Location079061600
RouteCity Street 0
CountyJohnson County
StateIowa
Coordinates41.65691, -91.55283
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionJuly 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length206 ft (62.8 m)
Longest span73 ft (22.3 m)
Deck width64 ft (19.4 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,001 (2022)
Projected traffic12,001 by 2043
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Melrose Ave over Iais RR built?

It was built in 1997, making it 28 years old in 2025.

What condition is Melrose Ave over Iais 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 July 2023.

How much traffic does Melrose Ave over Iais RR carry?

About 12,001 vehicles per day (2022 count).

How long is Melrose Ave over Iais RR?

The structure is 206 ft (62.8 m) long with a longest span of 73 ft (22.3 m) and a deck 64 ft wide.

Who owns Melrose Ave over Iais RR?

It is owned by the City or Municipal Highway Agency.