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County Highway over Warm Slough

Merrick County, Nebraska · rated Poor in the 2025 National Bridge Inventory

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

County Highway over Warm Slough in Merrick County, Nebraska, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1935, making it 90 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2003).
Its listed owner is the county highway agency.
It is one of 15 of the 173 inventoried bridges in Merrick County rated poor (8.7%); 15 (8.7%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 29 ft
Location	NE Edge of Central City
NBI structure number	C006133805P
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
US34/N2 over M Ch Platte River	1969	7,890	Good
US30 over Warm Slough Overflow	1991	6,345	Good
US30 over Warm Slough	1931	4,250	Good
US30 over Stream	1973	3,870	Good
US30 over Silver Creek	2020	3,685	Good
N14 over Platte River	1991	3,200	Good