US Bridges

Oakcresthill RD over Old Man Creek

Good

Johnson County, Iowa · 078062114 · Structure no. 000000000031621

Built
2005
20 years old
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
229 ft
3 main spans
Daily traffic
1,530
2022 count
Owner
County
County Highway Agency

About this bridge

Oakcresthill RD over Old Man Creek is a prestressed concrete stringer/multi-beam or girder carrying Oakcresthill RD over Old Man Creek in Johnson County, Iowa. It was built in 2005, so it is 20 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 1,530 vehicles a day, roughly 10% of them trucks, projected to reach 1,530 by 2043. The structure is 229 ft (69.8 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesOakcresthill RD
CrossesOld Man Creek
Location078062114
RouteCounty Highway 0
StateIowa
Coordinates41.54304, -91.54307
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.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.8 US tons
Inventory rating38.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length229 ft (69.8 m)
Longest span82 ft (25 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,530 (2022)
Projected traffic1,530 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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Oakcresthill RD over Old Man Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Oakcresthill RD over Old Man 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 2021.

How much traffic does Oakcresthill RD over Old Man Creek carry?

About 1,530 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Oakcresthill RD over Old Man Creek?

The structure is 229 ft (69.8 m) long with a longest span of 82 ft (25 m) and a deck 34 ft wide.

Who owns Oakcresthill RD over Old Man Creek?

It is owned by the County Highway Agency.