US Bridges

Frost Road over Swan Creek

Good

Saginaw County, Michigan · 0.1 MI E of Lone Road · Structure no. 000000000009226

Built
2013
12 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
147 ft
2 main spans
Daily traffic
4,303
2011 count
Owner
County
County Highway Agency

About this bridge

Frost Road over Swan Creek is a prestressed concrete stringer/multi-beam or girder carrying Frost Road over Swan Creek in Saginaw County, Michigan. It was built in 2013, so it is 12 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 4,303 vehicles a day, roughly 5% of them trucks, projected to reach 7,772 by 2031. The structure is 147 ft (44.8 m) long and 48 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFrost Road
CrossesSwan Creek
Location0.1 MI E of Lone Road
RouteCounty Highway 0
CountySaginaw County
StateMichigan
Coordinates43.4523, -84.11995
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating61.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length147 ft (44.8 m)
Longest span82 ft (25 m)
Deck width48 ft (14.7 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,303 (2011)
Projected traffic7,772 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Frost Road over Swan Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Frost Road over Swan Creek 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 August 2023.

How much traffic does Frost Road over Swan Creek carry?

About 4,303 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Frost Road over Swan Creek?

The structure is 147 ft (44.8 m) long with a longest span of 82 ft (25 m) and a deck 48 ft wide.

Who owns Frost Road over Swan Creek?

It is owned by the County Highway Agency.