Local over Lytle Creek

Good

Dubuque County, Iowa · 087E21704 · Structure no. 000000000145781

Built: 1997; 28 years old
Condition: Good; inspected March 2023
Type: Slab; Concrete Continuous
Length: 103 ft; 3 main spans
Daily traffic: 60; 2021 count
Owner: County; County Highway Agency

About this bridge

Local over Lytle Creek is a concrete continuous slab carrying Local over Lytle Creek in Dubuque County, Iowa. It was built in 1997, so it is 28 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 60 vehicles a day, projected to reach 60 by 2043. The structure is 103 ft (31.4 m) long and 31 ft wide.

Location

Open in Google Maps

CarriesLocal

CrossesLytle Creek

Location087E21704

RouteCounty Highway 0

CountyDubuque County

StateIowa

Coordinates42.34488, -90.76289

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.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	7 Good	Some minor problems.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMarch 2023

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

Deck geometry7: Better than present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating88.6 US tons

Inventory rating53.1 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length103 ft (31.4 m)

Longest span39 ft (11.9 m)

Deck width31 ft (9.5 m)

Roadway width30 ft (9.2 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2021)

Projected traffic60 by 2043

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed—

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 Local over Lytle Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Local over Lytle 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 March 2023.

How much traffic does Local over Lytle Creek carry?

About 60 vehicles per day (2021 count).

How long is Local over Lytle Creek?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 31 ft wide.

Who owns Local over Lytle Creek?

It is owned by the County Highway Agency.