US Bridges

Ia 148 over W.Fork 102 River

Fair

Taylor County, Iowa · 0.1 Mi. N of SR J20 · Structure no. 000000000050000

Built
1961
64 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
157 ft
3 main spans
Daily traffic
1,200
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 148 over W.Fork 102 River is a prestressed concrete stringer/multi-beam or girder carrying Ia 148 over W.Fork 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 1,200 vehicles a day, roughly 19% of them trucks, projected to reach 1,200 by 2044. The structure is 157 ft (47.9 m) long and 36 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesIa 148
CrossesW.Fork 102 River
Location0.1 Mi. N of SR J20
RouteState Highway 148
CountyTaylor County
StateIowa
Coordinates40.8585, -94.73822
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.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span52 ft (15.9 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2022)
Projected traffic1,200 by 2044
Trucks19%
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 W.Fork 102 River built?

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

What condition is Ia 148 over W.Fork 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 September 2024.

How much traffic does Ia 148 over W.Fork 102 River carry?

About 1,200 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Ia 148 over W.Fork 102 River?

The structure is 157 ft (47.9 m) long with a longest span of 52 ft (15.9 m) and a deck 36 ft wide.

Who owns Ia 148 over W.Fork 102 River?

It is owned by the State Highway Agency.