US Bridges

Ia 92 over Mississippi River & RR

Fair

Muscatine County, Iowa · In Muscatine · Structure no. 000000000038201

Built
1972
53 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
3,018 ft
1 main span
Daily traffic
3,820
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over Mississippi River & RR is a steel truss - thru carrying Ia 92 over Mississippi River & RR in Muscatine County, Iowa. It was built in 1972, so it is 53 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 3,820 vehicles a day, roughly 8% of them trucks, projected to reach 3,820 by 2043. The structure is 3,018 ft (919.9 m) long and 35 ft wide. If it were closed, the detour would be 52.2 mi (84 km).

Location

Open in Google Maps
CarriesIa 92
CrossesMississippi River & RR
LocationIn Muscatine
RouteState Highway 92
CountyMuscatine County
StateIowa
Coordinates41.42654, -91.03583
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
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+23 approach)
Design loadHS 20
Structure length3,018 ft (919.9 m)
Longest span512 ft (156.1 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic3,820 (2023)
Projected traffic3,820 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed52.2 mi (84 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ia 92 over Mississippi River & RR built?

It was built in 1972, making it 53 years old in 2025.

What condition is Ia 92 over Mississippi River & 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 August 2023.

How much traffic does Ia 92 over Mississippi River & RR carry?

About 3,820 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ia 92 over Mississippi River & RR?

The structure is 3,018 ft (919.9 m) long with a longest span of 512 ft (156.1 m) and a deck 35 ft wide.

Who owns Ia 92 over Mississippi River & RR?

It is owned by the State Highway Agency.