US Bridges

Ia 64 & 136 over Little Bear Creek

Fair

Jones County, Iowa · 0.2 Mi. E of W JCT Ia 136 · Structure no. 000000000032471

Built
1978
47 years old
Condition
Fair
inspected November 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
2,470
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 64 & 136 over Little Bear Creek is a concrete continuous slab carrying Ia 64 & 136 over Little Bear Creek in Jones County, Iowa. It was built in 1978, so it is 47 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 2,470 vehicles a day, roughly 10% of them trucks, projected to reach 2,470 by 2044. The structure is 103 ft (31.4 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 64 & 136
CrossesLittle Bear Creek
Location0.2 Mi. E of W JCT Ia 136
RouteState Highway 64
CountyJones County
StateIowa
Coordinates42.05889, -91.00815
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating68.1 US tons
Inventory rating40.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width45 ft (13.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,470 (2022)
Projected traffic2,470 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 64 & 136 over Little Bear Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Ia 64 & 136 over Little Bear Creek 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 November 2024.

How much traffic does Ia 64 & 136 over Little Bear Creek carry?

About 2,470 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Ia 64 & 136 over Little Bear Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 45 ft wide.

Who owns Ia 64 & 136 over Little Bear Creek?

It is owned by the State Highway Agency.