Dyersville East RD over Creek

Poor

Dubuque County, Iowa · 089022704 · Structure no. 000000000147720

Built: 1964; 61 years old
Condition: Poor; inspected June 2023
Type: Slab; Concrete
Length: 33 ft; 1 main span
Daily traffic: 511; 2022 count
Owner: County; County Highway Agency

About this bridge

Dyersville East RD over Creek is a concrete slab carrying Dyersville East RD over Creek in Dubuque County, Iowa. It was built in 1964, so it is 61 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 511 vehicles a day, roughly 12% of them trucks, projected to reach 511 by 2043. The structure is 33 ft (10.1 m) long and 30 ft wide.

Location

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CarriesDyersville East RD

CrossesCreek

Location089022704

RouteCounty Highway 0

CountyDubuque County

StateIowa

Coordinates42.50039, -91.06496

Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

Component	Rating	Meaning
Deck	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure	5 Fair	All primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure	4 Poor	Advanced section loss, deterioration, spalling or scour.
Channel and channel protection	6 Satisfactory	Structural elements show some minor deterioration.

Last inspectionJune 2023

Inspection intervalevery 12 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation4: Meets minimum tolerable limits to be left in place as is

Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating60.7 US tons

Inventory rating34 US tons

Structure

Structure typeSlab

MaterialConcrete

DeckConcrete, cast-in-place

Main spans1

Design loadH 20

Structure length33 ft (10.1 m)

Longest span31 ft (9.4 m)

Deck width30 ft (9.1 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic511 (2022)

Projected traffic511 by 2043

Trucks12%

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 Dyersville East RD over Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Dyersville East RD over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does Dyersville East RD over Creek carry?

About 511 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Dyersville East RD over Creek?

The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Dyersville East RD over Creek?

It is owned by the County Highway Agency.