US Bridges

Springport Road over Sandstone Creek

PoorPosted for load

Jackson County, Michigan · 2 MI S of Tompkins Center · Structure no. 000000000004481

Built
1973
52 years old
Condition
Poor
inspected October 2024
Type
Slab
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
700
2002 count
Owner
County
County Highway Agency

About this bridge

Springport Road over Sandstone Creek is a wood or timber slab carrying Springport Road over Sandstone Creek in Jackson County, Michigan. It was built in 1973, so it is 52 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 700 vehicles a day, projected to reach 800 by 2020. The structure is 78 ft (23.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSpringport Road
CrossesSandstone Creek
Location2 MI S of Tompkins Center
RouteCounty Highway 3878
Coordinates42.33773, -84.5488
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating37.1 US tons
Inventory rating25.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length78 ft (23.7 m)
Longest span26 ft (7.9 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2002)
Projected traffic800 by 2020
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$130,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Springport Road over Sandstone Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Springport Road over Sandstone Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Springport Road over Sandstone Creek carry?

About 700 vehicles per day (2002 count).

How long is Springport Road over Sandstone Creek?

The structure is 78 ft (23.7 m) long with a longest span of 26 ft (7.9 m) and a deck 33 ft wide.

Who owns Springport Road over Sandstone Creek?

It is owned by the County Highway Agency.