US Bridges

Indigo Ave over Buffalo Creek

Good

Franklin County, Iowa · 92210402 · Structure no. 000000000157741

Built
2015
10 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

Indigo Ave over Buffalo Creek is a concrete culvert carrying Indigo Ave over Buffalo Creek in Franklin County, Iowa. It was built in 2015, so it is 10 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 51 vehicles a day, projected to reach 51 by 2044. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIndigo Ave
CrossesBuffalo Creek
Location92210402
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.80938, -93.34046
Functional classRural Local

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 inspectionJune 2024
Inspection intervalevery 48 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 rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.7 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 by 2044
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 Indigo Ave over Buffalo Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Indigo Ave over Buffalo 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 June 2024.

How much traffic does Indigo Ave over Buffalo Creek carry?

About 51 vehicles per day (2022 count).

How long is Indigo Ave over Buffalo Creek?

The structure is 29 ft (8.7 m) long with a longest span of 12 ft (3.7 m).

Who owns Indigo Ave over Buffalo Creek?

It is owned by the County Highway Agency.