US Bridges

Grouse Avenue over Drainage Ditch No 6

Fair

Franklin County, Iowa · 090210602 · Structure no. 000000000156610

Built
1967
58 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
29 ft
2 main spans
Daily traffic
11
2022 count
Owner
County
County Highway Agency

About this bridge

Grouse Avenue over Drainage Ditch No 6 is a steel culvert carrying Grouse Avenue over Drainage Ditch No 6 in Franklin County, Iowa. It was built in 1967, so it is 58 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 5 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 11 vehicles a day, projected to reach 11 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGrouse Avenue
CrossesDrainage Ditch No 6
Location090210602
RouteCounty Highway 0
CountyFranklin County
StateIowa
Coordinates42.63879, -93.38059
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length29 ft (8.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11 (2022)
Projected traffic11 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Grouse Avenue over Drainage Ditch No 6 built?

It was built in 1967, making it 58 years old in 2025.

What condition is Grouse Avenue over Drainage Ditch No 6 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 June 2024.

How much traffic does Grouse Avenue over Drainage Ditch No 6 carry?

About 11 vehicles per day (2022 count).

How long is Grouse Avenue over Drainage Ditch No 6?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (4 m).

Who owns Grouse Avenue over Drainage Ditch No 6?

It is owned by the County Highway Agency.