US Bridges

Local over Hartgrave Ck

PoorPosted for load

Butler County, Iowa · 092181910 · Structure no. 000000000089040

Built
1952
73 years old, rebuilt 1989
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
89 ft
4 main spans
Daily traffic
59
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Hartgrave Ck is a wood or timber stringer/multi-beam or girder carrying Local over Hartgrave Ck in Butler County, Iowa. It was built in 1952 and reconstructed in 1989, so it is 73 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 59 vehicles a day, projected to reach 59 by 2044. The structure is 89 ft (27.1 m) long and 20 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesHartgrave Ck
Location092181910
RouteCounty Highway 0
StateIowa
Coordinates42.75987, -93.02576
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating32.2 US tons
Inventory rating22.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 15
Structure length89 ft (27.1 m)
Longest span25 ft (7.6 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic59 (2022)
Projected traffic59 by 2044
Trucks0%
Lanes on structure2
Traffic directionOne-lane bridge for two-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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Hartgrave Ck built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 1989.

What condition is Local over Hartgrave Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2024.

How much traffic does Local over Hartgrave Ck carry?

About 59 vehicles per day (2022 count).

How long is Local over Hartgrave Ck?

The structure is 89 ft (27.1 m) long with a longest span of 25 ft (7.6 m) and a deck 20 ft wide.

Who owns Local over Hartgrave Ck?

It is owned by the County Highway Agency.