US Bridges

Ferguson RD over Harber Drain

Fair

Allen County, Indiana · 00.10 E Bluffton RD · Structure no. 0200190

Built
1968
57 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
81 ft
2 main spans
Daily traffic
2,602
2018 count
Owner
County
County Highway Agency

About this bridge

Ferguson RD over Harber Drain is a prestressed concrete stringer/multi-beam or girder carrying Ferguson RD over Harber Drain in Allen County, Indiana. It was built in 1968, so it is 57 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 2,602 vehicles a day, roughly 5% of them trucks, projected to reach 3,888 by 2038. The structure is 81 ft (24.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFerguson RD
CrossesHarber Drain
Location00.10 E Bluffton RD
RouteCounty Highway 0
CountyAllen County
StateIndiana
Coordinates40.9893, -85.16557
Functional classRural Major Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating36.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length81 ft (24.6 m)
Longest span38 ft (11.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,602 (2018)
Projected traffic3,888 by 2038
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 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 Ferguson RD over Harber Drain built?

It was built in 1968, making it 57 years old in 2025.

What condition is Ferguson RD over Harber Drain 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 May 2024.

How much traffic does Ferguson RD over Harber Drain carry?

About 2,602 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Ferguson RD over Harber Drain?

The structure is 81 ft (24.6 m) long with a longest span of 38 ft (11.5 m) and a deck 31 ft wide.

Who owns Ferguson RD over Harber Drain?

It is owned by the County Highway Agency.