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Halley Rd over Sandy CR

Mercer County, Missouri · rated Good in the 2025 National Bridge Inventory

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

Halley Rd over Sandy CR in Mercer County, Missouri, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 2006, making it 19 years old at the 2025 inventory.
It carries about 40 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 62 of the 135 inventoried bridges in Mercer County rated good (45.9%); 23 (17.0%) are rated poor.
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 prestressed concrete tee beam
Length	about 129 ft
Location	S 8 T 64 N R 25 W
NBI structure number	31515
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 65 S over Wildcat CR	2001	2,192	Fair
US 136 E over Weldon Fk of Grand	1971	1,917	Fair
US 136 E over Grand Rvr Ovrfl	1971	1,917	Poor
US 136 E over W Muddy CR	1971	1,221	Fair
US 136 E over W Muddy CR	1971	1,221	Fair
US 136 E over Sandy CR	1985	1,084	Good