US Bridges

S55 Spruce Ave over Small Stream

Good

Franklin County, Iowa · 91191904100058 · Structure no. 000000000156891

Built
2019
6 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

S55 Spruce Ave over Small Stream is a concrete culvert carrying S55 Spruce Ave over Small Stream in Franklin County, Iowa. It was built in 2019, so it is 6 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS55 Spruce Ave
CrossesSmall Stream
Location91191904100058
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.67858, -93.14392
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S55 Spruce Ave over Small Stream built?

It was built in 2019, making it 6 years old in 2025.

What condition is S55 Spruce Ave 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 May 2023.

How much traffic does S55 Spruce Ave over Small Stream carry?

About 59 vehicles per day (2022 count).

How long is S55 Spruce Ave over Small Stream?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns S55 Spruce Ave over Small Stream?

It is owned by the County Highway Agency.