US Bridges

SR 101 over SR 156 & Markland Dam

Fair

Switzerland County, Indiana · 00.28 S SR 156 · Structure no. 025065

Built
1975
50 years old, rebuilt 2015
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
682 ft
6 main spans
Daily traffic
5,847
2022 count
Owner
State
State Highway Agency

About this bridge

SR 101 over SR 156 & Markland Dam is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 101 over SR 156 & Markland Dam in Switzerland County, Indiana. It was built in 1975 and reconstructed in 2015, so it is 50 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,847 vehicles a day, roughly 9% of them trucks, projected to reach 7,040 by 2035. The structure is 682 ft (207.8 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSR 101
CrossesSR 156 & Markland Dam
Location00.28 S SR 156
RouteState Highway 101
CountySwitzerland County
StateIndiana
Coordinates38.78079, -84.96406
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating31.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6 (+1 approach)
Design loadHS 20
Structure length682 ft (207.8 m)
Longest span108 ft (32.9 m)
Deck width38 ft (11.6 m)
Roadway width35 ft (10.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,847 (2022)
Projected traffic7,040 by 2035
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 101 over SR 156 & Markland Dam built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2015.

What condition is SR 101 over SR 156 & Markland Dam in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does SR 101 over SR 156 & Markland Dam carry?

About 5,847 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is SR 101 over SR 156 & Markland Dam?

The structure is 682 ft (207.8 m) long with a longest span of 108 ft (32.9 m) and a deck 38 ft wide.

Who owns SR 101 over SR 156 & Markland Dam?

It is owned by the State Highway Agency.