US Bridges

Mfr Drive over Harts Mill Creek

Good

Clinton County, Iowa · 081061505 · Structure no. 000000000002111

Built
1993
32 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
118 ft
3 main spans
Daily traffic
8,800
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mfr Drive over Harts Mill Creek is a concrete continuous slab carrying Mfr Drive over Harts Mill Creek in Clinton County, Iowa. It was built in 1993, so it is 32 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 8,800 vehicles a day, projected to reach 8,800 by 2044. The structure is 118 ft (36 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMfr Drive
CrossesHarts Mill Creek
Location081061505
RouteCity Street 0
StateIowa
Coordinates41.82251, -90.24078
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92.3 US tons
Inventory rating55.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length118 ft (36 m)
Longest span48 ft (14.6 m)
Deck width41 ft (12.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,800 (2022)
Projected traffic8,800 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mfr Drive over Harts Mill Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Mfr Drive over Harts Mill 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 May 2024.

How much traffic does Mfr Drive over Harts Mill Creek carry?

About 8,800 vehicles per day (2022 count).

How long is Mfr Drive over Harts Mill Creek?

The structure is 118 ft (36 m) long with a longest span of 48 ft (14.6 m) and a deck 41 ft wide.

Who owns Mfr Drive over Harts Mill Creek?

It is owned by the City or Municipal Highway Agency.