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Frontage Road | Ma over East Plum Creek

Douglas County, Colorado · rated Good in the 2025 National Bridge Inventory

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

Frontage Road | Ma over East Plum Creek in Douglas County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 1960, making it 65 years old at the 2025 inventory.
Its listed owner is the county highway agency.
It is one of 139 of the 264 inventoried bridges in Douglas County rated good (52.7%); 6 (2.3%) 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	Steel stringer or multi-beam girder
Length	about 32 ft
Location	0.5 Mi S of I-25 Tomah
NBI structure number	DOUMRTNEZ-0.00
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 25 Ml over Happy Canyon Creek	1999	116,000	Fair
I 25 Ml over Ridgegate Pkwy	2008	116,000	Fair
I 25 Ml over Clydesdale Ln	1999	116,000	Fair
SH 470 Ml over Willow Creek	1984	95,000	Fair
I 25 Nbnd Ramp over Ramp to County Line Rd R	1983	85,500	Fair
C470 EB Ramp to 25 over Lrt	2005	85,500	Fair