US Bridges

Bristol RD over Gtw RR

Good

Genesee County, Michigan · E of I-69 · Structure no. 000000000012825

Built
1999
26 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
172 ft
1 main span
Daily traffic
11,132
2014 count
Owner
County
County Highway Agency

About this bridge

Bristol RD over Gtw RR is a prestressed concrete stringer/multi-beam or girder carrying Bristol RD over Gtw RR 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 11,132 vehicles a day, roughly 11% of them trucks, projected to reach 20,107 by 2034. The structure is 172 ft (52.3 m) long and 129 ft wide.

CarriesBristol RD
CrossesGtw RR
LocationE of I-69
RouteCounty Highway 121
Coordinates42.97293, -83.75761
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length172 ft (52.3 m)
Longest span172 ft (52.3 m)
Deck width129 ft (39.3 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,132 (2014)
Projected traffic20,107 by 2034
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bristol RD over Gtw RR built?

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

What condition is Bristol RD over Gtw RR 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 Gtw RR carry?

About 11,132 vehicles per day (2014 count), of which roughly 11% are trucks.

How long is Bristol RD over Gtw RR?

The structure is 172 ft (52.3 m) long with a longest span of 172 ft (52.3 m) and a deck 129 ft wide.

Who owns Bristol RD over Gtw RR?

It is owned by the County Highway Agency.