US Bridges

Robb Hill RD over Sycamore Creek

Good

Morgan County, Indiana · 00.67 W of CO RD 40 · Structure no. 5500052

Built
1976
49 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
107 ft
3 main spans
Daily traffic
900
2023 count
Owner
County
County Highway Agency

About this bridge

Robb Hill RD over Sycamore Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Robb Hill RD over Sycamore Creek in Morgan County, Indiana. It was built in 1976, so it is 49 years old, older than the Indiana average of 46.6 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 1,580 by 2043. The structure is 107 ft (32.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesRobb Hill RD
CrossesSycamore Creek
Location00.67 W of CO RD 40
RouteCounty Highway 28
StateIndiana
Coordinates39.51376, -86.43207
Functional classRural Minor Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.9 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length107 ft (32.7 m)
Longest span38 ft (11.5 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic1,580 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Robb Hill RD over Sycamore Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Robb Hill RD over Sycamore 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 December 2024.

How much traffic does Robb Hill RD over Sycamore Creek carry?

About 900 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Robb Hill RD over Sycamore Creek?

The structure is 107 ft (32.7 m) long with a longest span of 38 ft (11.5 m) and a deck 30 ft wide.

Who owns Robb Hill RD over Sycamore Creek?

It is owned by the County Highway Agency.