Park RD over Rock Creek

Fair

Cedar County, Iowa · 081031105 · Structure no. 000000000103901

Built: 1985; 40 years old
Condition: Fair; inspected May 2024
Type: Tee Beam; Prestressed Concrete
Length: 125 ft; 3 main spans
Daily traffic: 45; 2022 count
Owner: County; County Highway Agency

About this bridge

Park RD over Rock Creek is a prestressed concrete tee beam carrying Park RD over Rock Creek in Cedar County, Iowa. It was built in 1985, so it is 40 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 45 vehicles a day, projected to reach 45 by 2044. The structure is 125 ft (38.1 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPark RD

CrossesRock Creek

Location081031105

RouteCounty Highway 0

CountyCedar County

StateIowa

Coordinates41.83661, -91.16061

Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

Component	Rating	Meaning
Deck	7 Good	Some minor problems.
Superstructure	7 Good	Some minor problems.
Substructure	6 Satisfactory	Structural elements show some minor deterioration.
Channel and channel protection	7 Good	Some minor problems.

Last inspectionMay 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating52.1 US tons

Inventory rating31.1 US tons

Structure

Structure typeTee Beam

MaterialPrestressed Concrete

DeckConcrete, precast panels

Main spans3

Design loadH 20

Structure length125 ft (38.1 m)

Longest span41 ft (12.5 m)

Deck width29 ft (8.8 m)

Roadway width27 ft (8.1 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)

Projected traffic45 by 2044

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 Park RD over Rock Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Park RD over Rock Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Park RD over Rock Creek carry?

About 45 vehicles per day (2022 count).

How long is Park RD over Rock Creek?

The structure is 125 ft (38.1 m) long with a longest span of 41 ft (12.5 m) and a deck 29 ft wide.

Who owns Park RD over Rock Creek?

It is owned by the County Highway Agency.