US Bridges

Ia 148 over East Nodaway River

Fair

Adams County, Iowa · 0.4 Mi. N of US 34 · Structure no. 000000000013391

Built
1976
49 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
213 ft
3 main spans
Daily traffic
3,580
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 148 over East Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying Ia 148 over East Nodaway River in Adams County, Iowa. It was built in 1976, so it is 49 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 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 3,580 vehicles a day, roughly 12% of them trucks, projected to reach 3,580 by 2044. The structure is 213 ft (64.9 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIa 148
CrossesEast Nodaway River
Location0.4 Mi. N of US 34
RouteState Highway 148
CountyAdams County
StateIowa
Coordinates40.98396, -94.7319
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
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 rating73.6 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length213 ft (64.9 m)
Longest span81 ft (24.7 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,580 (2022)
Projected traffic3,580 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 148 over East Nodaway River built?

It was built in 1976, making it 49 years old in 2025.

What condition is Ia 148 over East Nodaway River 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 May 2024.

How much traffic does Ia 148 over East Nodaway River carry?

About 3,580 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Ia 148 over East Nodaway River?

The structure is 213 ft (64.9 m) long with a longest span of 81 ft (24.7 m) and a deck 41 ft wide.

Who owns Ia 148 over East Nodaway River?

It is owned by the State Highway Agency.