US Bridges

Ia 148 over Middle Br W 102 River

Fair

Taylor County, Iowa · 2.0 Mi.S.Of SR J-20 · Structure no. 000000000049990

Built
1961
64 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
3 main spans
Daily traffic
890
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 148 over Middle Br W 102 River is a prestressed concrete stringer/multi-beam or girder carrying Ia 148 over Middle Br W 102 River in Taylor County, Iowa. It was built in 1961, so it is 64 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 890 vehicles a day, roughly 26% of them trucks, projected to reach 890 by 2044. The structure is 158 ft (48.2 m) long and 36 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesIa 148
CrossesMiddle Br W 102 River
Location2.0 Mi.S.Of SR J-20
RouteState Highway 148
StateIowa
Coordinates40.82771, -94.7384
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81.7 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span52 ft (15.9 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic890 (2022)
Projected traffic890 by 2044
Trucks26%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 Middle Br W 102 River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Ia 148 over Middle Br W 102 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 January 2024.

How much traffic does Ia 148 over Middle Br W 102 River carry?

About 890 vehicles per day (2022 count), of which roughly 26% are trucks.

How long is Ia 148 over Middle Br W 102 River?

The structure is 158 ft (48.2 m) long with a longest span of 52 ft (15.9 m) and a deck 36 ft wide.

Who owns Ia 148 over Middle Br W 102 River?

It is owned by the State Highway Agency.