US Bridges

J 13 (405th St) over Small Stream

Good

Appanoose County, Iowa · 070160905 · Structure no. 000000000065821

Built
2012
13 years old
Condition
Good
inspected October 2022
Type
Slab
Concrete Continuous
Length
91 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

J 13 (405th St) over Small Stream is a concrete continuous slab carrying J 13 (405th St) over Small Stream in Appanoose County, Iowa. It was built in 2012, so it is 13 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 25 by 2043. The structure is 91 ft (27.7 m) long and 27 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesJ 13 (405th St)
CrossesSmall Stream
Location070160905
RouteCounty Highway 0
CountyAppanoose County
StateIowa
Coordinates40.88505, -92.6995
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.6 US tons
Inventory rating41.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length91 ft (27.7 m)
Longest span35 ft (10.7 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was J 13 (405th St) over Small Stream built?

It was built in 2012, making it 13 years old in 2025.

What condition is J 13 (405th St) over Small Stream 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 October 2022.

How much traffic does J 13 (405th St) over Small Stream carry?

About 25 vehicles per day (2022 count).

How long is J 13 (405th St) over Small Stream?

The structure is 91 ft (27.7 m) long with a longest span of 35 ft (10.7 m) and a deck 27 ft wide.

Who owns J 13 (405th St) over Small Stream?

It is owned by the County Highway Agency.