US Bridges

Tile Mill RD over Edgerton-Carson Drain

Fair

Allen County, Indiana · 00.01 W Brobst Road · Structure no. 0200108

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
78 ft
3 main spans
Daily traffic
156
2018 count
Owner
County
County Highway Agency

About this bridge

Tile Mill RD over Edgerton-Carson Drain is a prestressed concrete box beam or girders - multiple carrying Tile Mill RD over Edgerton-Carson Drain in Allen County, Indiana. It was built in 1974, so it is 51 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 5 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 156 vehicles a day, roughly 5% of them trucks, projected to reach 233 by 2038. The structure is 78 ft (23.7 m) long and 32 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesTile Mill RD
CrossesEdgerton-Carson Drain
Location00.01 W Brobst Road
RouteCounty Highway 234
StateIndiana
Coordinates41.13331, -84.83867
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.9 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length78 ft (23.7 m)
Longest span26 ft (7.9 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic156 (2018)
Projected traffic233 by 2038
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$143,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Tile Mill RD over Edgerton-Carson Drain built?

It was built in 1974, making it 51 years old in 2025.

What condition is Tile Mill RD over Edgerton-Carson 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 Tile Mill RD over Edgerton-Carson Drain carry?

About 156 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Tile Mill RD over Edgerton-Carson Drain?

The structure is 78 ft (23.7 m) long with a longest span of 26 ft (7.9 m) and a deck 32 ft wide.

Who owns Tile Mill RD over Edgerton-Carson Drain?

It is owned by the County Highway Agency.