US Bridges

Bristol RD over Swartz CR

Good

Genesee County, Michigan · E of I-69 · Structure no. 000000000002560

Built
1999
26 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
36 ft
1 main span
Daily traffic
14,755
2010 count
Owner
County
County Highway Agency

About this bridge

Bristol RD over Swartz CR is a concrete culvert carrying Bristol RD over Swartz CR in Genesee County, Michigan. It was built in 1999, so it is 26 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,755 vehicles a day, roughly 11% of them trucks, projected to reach 26,650 by 2030. The structure is 36 ft (10.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBristol RD
CrossesSwartz CR
LocationE of I-69
RouteCounty Highway 121
CountyGenesee County
StateMichigan
Coordinates42.97291, -83.76099
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating60.6 US tons
Inventory rating36.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span36 ft (10.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,755 (2010)
Projected traffic26,650 by 2030
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Bristol RD over Swartz CR built?

It was built in 1999, making it 26 years old in 2025.

What condition is Bristol RD over Swartz CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does Bristol RD over Swartz CR carry?

About 14,755 vehicles per day (2010 count), of which roughly 11% are trucks.

How long is Bristol RD over Swartz CR?

The structure is 36 ft (10.9 m) long with a longest span of 36 ft (10.9 m).

Who owns Bristol RD over Swartz CR?

It is owned by the County Highway Agency.