US Bridges

T13 D Ave over Waterway

Good

Grundy County, Iowa · 089181002 · Structure no. 000000000366175

Built
2015
10 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
805
2022 count
Owner
County
County Highway Agency

About this bridge

T13 D Ave over Waterway is a concrete culvert carrying T13 D Ave over Waterway in Grundy 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 805 vehicles a day, roughly 48% of them trucks, projected to reach 805 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesT13 D Ave
CrossesWaterway
Location089181002
RouteCounty Highway 0
CountyGrundy County
StateIowa
Coordinates42.54235, -92.96716
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 inspectionApril 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic805 (2022)
Projected traffic805 by 2043
Trucks48%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 T13 D Ave over Waterway built?

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

What condition is T13 D Ave over Waterway 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 April 2022.

How much traffic does T13 D Ave over Waterway carry?

About 805 vehicles per day (2022 count), of which roughly 48% are trucks.

How long is T13 D Ave over Waterway?

The structure is 25 ft (7.6 m) long with a longest span of 5 ft (1.5 m).

Who owns T13 D Ave over Waterway?

It is owned by the County Highway Agency.