US Bridges

Manawa Trail RD over Canoe Creek

Good

Winneshiek County, Iowa · 099072905 · Structure no. 000000000348361

Built
1979
46 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
102 ft
3 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Manawa Trail RD over Canoe Creek is a concrete continuous slab carrying Manawa Trail RD over Canoe Creek in Winneshiek County, Iowa. It was built in 1979, so it is 46 years old, older 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 59 vehicles a day, projected to reach 59 by 2043. The structure is 102 ft (31.1 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesManawa Trail RD
CrossesCanoe Creek
Location099072905
RouteCounty Highway 0
CountyWinneshiek County
StateIowa
Coordinates43.35878, -91.70582
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37.9 US tons
Inventory rating22.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length102 ft (31.1 m)
Longest span39 ft (11.9 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Manawa Trail RD over Canoe Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is Manawa Trail RD over Canoe 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 November 2023.

How much traffic does Manawa Trail RD over Canoe Creek carry?

About 59 vehicles per day (2022 count).

How long is Manawa Trail RD over Canoe Creek?

The structure is 102 ft (31.1 m) long with a longest span of 39 ft (11.9 m) and a deck 25 ft wide.

Who owns Manawa Trail RD over Canoe Creek?

It is owned by the County Highway Agency.