US Bridges

County Line RD over Bear Creek

Good

Iowa County, Iowa · 080131300 · Structure no. 000000000029701

Built
2015
10 years old
Condition
Good
inspected December 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
201 ft
3 main spans
Daily traffic
1,260
2022 count
Owner
County
County Highway Agency

About this bridge

County Line RD over Bear Creek is a prestressed concrete stringer/multi-beam or girder carrying County Line RD over Bear Creek in Iowa County, Iowa. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,260 vehicles a day, roughly 13% of them trucks, projected to reach 1,260 by 2043. The structure is 201 ft (61.3 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCounty Line RD
CrossesBear Creek
Location080131300
RouteCounty Highway 0
CountyIowa County
StateIowa
Coordinates41.73509, -92.29988
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length201 ft (61.3 m)
Longest span72 ft (21.9 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,260 (2022)
Projected traffic1,260 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 County Line RD over Bear Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is County Line RD over Bear 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 December 2021.

How much traffic does County Line RD over Bear Creek carry?

About 1,260 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is County Line RD over Bear Creek?

The structure is 201 ft (61.3 m) long with a longest span of 72 ft (21.9 m) and a deck 43 ft wide.

Who owns County Line RD over Bear Creek?

It is owned by the County Highway Agency.