US Bridges

Local 90th ST over Br Crane Creek

PoorPosted for load

Howard County, Iowa · 099132101 · Structure no. 000000000183240

Built
1970
55 years old
Condition
Poor
inspected April 2024
Type
Channel Beam
Concrete
Length
26 ft
1 main span
Daily traffic
16
2021 count
Owner
County
County Highway Agency

About this bridge

Local 90th ST over Br Crane Creek is a concrete channel beam carrying Local 90th ST over Br Crane Creek in Howard County, Iowa. It was built in 1970, so it is 55 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 3 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 16 vehicles a day, projected to reach 16 by 2044. The structure is 26 ft (7.9 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesLocal 90th ST
CrossesBr Crane Creek
Location099132101
RouteCounty Highway 0
StateIowa
Coordinates43.38574, -92.38427
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.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.5 US tons
Inventory rating19.2 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span24 ft (7.3 m)
Deck width29 ft (8.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2021)
Projected traffic16 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local 90th ST over Br Crane Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Local 90th ST over Br Crane Creek 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 April 2024.

How much traffic does Local 90th ST over Br Crane Creek carry?

About 16 vehicles per day (2021 count).

How long is Local 90th ST over Br Crane Creek?

The structure is 26 ft (7.9 m) long with a longest span of 24 ft (7.3 m) and a deck 29 ft wide.

Who owns Local 90th ST over Br Crane Creek?

It is owned by the County Highway Agency.