US Bridges

Agate RD over Turkey River over Flow

Good

Fayette County, Iowa · 094071311 · Structure no. 000000000151981

Built
1996
29 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
44 ft
2 main spans
Daily traffic
599
2022 count
Owner
County
County Highway Agency

About this bridge

Agate RD over Turkey River over Flow is a concrete continuous culvert carrying Agate RD over Turkey River over Flow in Fayette County, Iowa. It was built in 1996, so it is 29 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 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 599 vehicles a day, projected to reach 599 by 2043. The structure is 44 ft (13.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesAgate RD
CrossesTurkey River over Flow
Location094071311
RouteCounty Highway 0
StateIowa
Coordinates42.95714, -91.61584
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic599 (2022)
Projected traffic599 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Agate RD over Turkey River over Flow built?

It was built in 1996, making it 29 years old in 2025.

What condition is Agate RD over Turkey River over Flow 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 October 2023.

How much traffic does Agate RD over Turkey River over Flow carry?

About 599 vehicles per day (2022 count).

How long is Agate RD over Turkey River over Flow?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m).

Who owns Agate RD over Turkey River over Flow?

It is owned by the County Highway Agency.