ST Annes RD over Mcdonalds Creek

Good

Scott County, Iowa · 080E41901 · Structure no. 000000000303661

Built: 1988; 37 years old
Condition: Good; inspected April 2023
Type: Slab; Concrete Continuous
Length: 127 ft; 3 main spans
Daily traffic: 680; 2022 count
Owner: County; County Highway Agency

About this bridge

ST Annes RD over Mcdonalds Creek is a concrete continuous slab carrying ST Annes RD over Mcdonalds Creek in Scott County, Iowa. It was built in 1988, so it is 37 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 680 vehicles a day, roughly 10% of them trucks, projected to reach 680 by 2043. The structure is 127 ft (38.7 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesST Annes RD

CrossesMcdonalds Creek

Location080E41901

RouteCounty Highway 0

CountyScott County

StateIowa

Coordinates41.72771, -90.54457

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.

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 inspectionApril 2023

Inspection intervalevery 48 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

Structural evaluation7: Better than present minimum criteria

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

Waterway adequacy7: Better than present minimum criteria

Approach roadway alignment6: Equal to present minimum criteria

Operating rating73.1 US tons

Inventory rating43.7 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length127 ft (38.7 m)

Longest span48 ft (14.6 m)

Deck width31 ft (9.4 m)

Roadway width28 ft (8.5 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic680 (2022)

Projected traffic680 by 2043

Trucks10%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed5 mi (8 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 ST Annes RD over Mcdonalds Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is ST Annes RD over Mcdonalds 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 April 2023.

How much traffic does ST Annes RD over Mcdonalds Creek carry?

About 680 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is ST Annes RD over Mcdonalds Creek?

The structure is 127 ft (38.7 m) long with a longest span of 48 ft (14.6 m) and a deck 31 ft wide.

Who owns ST Annes RD over Mcdonalds Creek?

It is owned by the County Highway Agency.