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J48 250TH St over Unnamed Trib to Grand Rv

Decatur County, Iowa · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

J48 250TH St over Unnamed Trib to Grand Rv in Decatur County, Iowa, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
It was built in 2023, making it 2 years old at the 2025 inventory.
It carries about 20 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 37 of the 199 inventoried bridges in Decatur County rated good (18.6%); 78 (39.2%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
Its most recent inspection on record is dated November 2023, on a 24-month routine inspection cycle.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous concrete slab
Length	about 130 ft
Location	068261600
NBI structure number	000000000137321
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	November 2023
Inspection interval (item 91)	24 months
Scour (item 113)	5: foundations stable, scour within the limits of the footing or piles

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

Bridge	Built	Vehicles/day	Condition
Rest Area Road over Rest Area Road	1994	13,800	Fair
SB I-35 over Grand River	1970	7,700	Fair
NB I-35 over Grand River	1970	7,550	Fair
SB I-35 over 310TH Street	1970	7,250	Fair
SB I-35 over Stream	1970	7,250	Good
NB I-35 over 310TH St	1970	7,100	Fair