US Bridges

SR 66 over Big Branch Creek

Fair

Spencer County, Indiana · 00.40 W SR 70 · Structure no. 023530

Built
1932
93 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
38 ft
1 main span
Daily traffic
2,760
2004 count
Owner
State
State Highway Agency

About this bridge

SR 66 over Big Branch Creek is a concrete culvert carrying SR 66 over Big Branch Creek in Spencer County, Indiana. It was built in 1932, so it is 93 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 2,760 vehicles a day, roughly 10% of them trucks, projected to reach 3,823 by 2032. The structure is 38 ft (11.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesSR 66
CrossesBig Branch Creek
Location00.40 W SR 70
RouteState Highway 66
CountySpencer County
StateIndiana
Coordinates37.99884, -86.86396
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating97.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length38 ft (11.5 m)
Longest span35 ft (10.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,760 (2004)
Projected traffic3,823 by 2032
Trucks10%
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

OwnerState Highway Agency
Maintained byState 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 SR 66 over Big Branch Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is SR 66 over Big Branch Creek 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 66 over Big Branch Creek carry?

About 2,760 vehicles per day (2004 count), of which roughly 10% are trucks.

How long is SR 66 over Big Branch Creek?

The structure is 38 ft (11.5 m) long with a longest span of 35 ft (10.6 m).

Who owns SR 66 over Big Branch Creek?

It is owned by the State Highway Agency.