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Sharp Street over Keg Creek

Mills County, Iowa · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (41.04694, -95.73693)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck66Satisfactory condition
Superstructure55Fair condition
Substructure66Satisfactory condition

Bridge details

StructureContinuous steel girder and floorbeam
Lengthabout 416 ft
Location000000000
NBI structure number000000000035810
Condition classFair
Traffic status (item 41)Open, no restriction
Last inspection (item 90)February 2023
Inspection interval (item 91)24 months
Scour (item 113)8: foundations stable, scour above the top of the footing
Fracture critical (item 92A)Yes

Source: FHWA National Bridge Inventory, 2025 data as reported by the Iowa department of transportation.

Busiest bridges in Mills County

BridgeBuiltVehicles/dayCondition
I-29 over Fulsom Lake Outlet201019,700Good
NB I-29 over St Marys Creek20099,850Good
SB I-29 over St Marys Creek20099,850Good
Locust Street over Tinkle Branch19768,957Fair
US 34 over Missouri River20147,100Good
NB I-29 over Drainage Ditch20096,850Good

All bridges nearby: Mills County, IA bridge conditions · every bridge in Mills County · Iowa bridges.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.