US Bridges

100th Ave over Bear Creek

Good

Jones County, Iowa · 084022704 · Structure no. 000000000207321

Built
2008
17 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
128
2022 count
Owner
County
County Highway Agency

About this bridge

100th Ave over Bear Creek is a concrete continuous slab carrying 100th Ave over Bear Creek in Jones County, Iowa. It was built in 2008, so it is 17 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 128 vehicles a day, projected to reach 128 by 2043. The structure is 133 ft (40.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries100th Ave
CrossesBear Creek
Location084022704
RouteCounty Highway 0
StateIowa
Coordinates42.05722, -91.07338
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length133 ft (40.5 m)
Longest span51 ft (15.5 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128 (2022)
Projected traffic128 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 100th Ave over Bear Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is 100th Ave over Bear Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does 100th Ave over Bear Creek carry?

About 128 vehicles per day (2022 count).

How long is 100th Ave over Bear Creek?

The structure is 133 ft (40.5 m) long with a longest span of 51 ft (15.5 m) and a deck 33 ft wide.

Who owns 100th Ave over Bear Creek?

It is owned by the County Highway Agency.