US Bridges

Tillman RD over Mchenry Drain

Fair

Allen County, Indiana · 00.20 E Snyder Road · Structure no. 0200125

Built
1969
56 years old, rebuilt 1995
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
1,093
2018 count
Owner
County
County Highway Agency

About this bridge

Tillman RD over Mchenry Drain is a steel stringer/multi-beam or girder carrying Tillman RD over Mchenry Drain in Allen County, Indiana. It was built in 1969 and reconstructed in 1995, so it is 56 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 1,093 vehicles a day, roughly 5% of them trucks, projected to reach 1,633 by 2038. The structure is 52 ft (15.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTillman RD
CrossesMchenry Drain
Location00.20 E Snyder Road
RouteCounty Highway 0
StateIndiana
Coordinates41.02207, -84.90804
Functional classRural Minor 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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.4 US tons
Inventory rating39.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,093 (2018)
Projected traffic1,633 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 Tillman RD over Mchenry Drain built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1995.

What condition is Tillman RD over Mchenry 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 June 2024.

How much traffic does Tillman RD over Mchenry Drain carry?

About 1,093 vehicles per day (2018 count), of which roughly 5% are trucks.

How long is Tillman RD over Mchenry Drain?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.3 m) and a deck 33 ft wide.

Who owns Tillman RD over Mchenry Drain?

It is owned by the County Highway Agency.