US Bridges

Fourth ST over Spy Run Creek

Poor

Allen County, Indiana · 00.10 W of Spy Run Ave · Structure no. 0200261

Built
1921
104 years old
Condition
Poor
inspected May 2024
Type
Arch - Deck
Concrete
Length
65 ft
1 main span
Daily traffic
3,025
2024 count
Owner
County
County Highway Agency

About this bridge

Fourth ST over Spy Run Creek is a concrete arch - deck carrying Fourth ST over Spy Run Creek in Allen County, Indiana. It was built in 1921, so it is 104 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 3,025 vehicles a day, roughly 5% of them trucks, projected to reach 5,000 by 2044. The structure is 65 ft (19.8 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesFourth ST
CrossesSpy Run Creek
Location00.10 W of Spy Run Ave
RouteCity Street 0
StateIndiana
Coordinates41.08807, -85.13544
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating35.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span55 ft (16.7 m)
Deck width43 ft (13.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,025 (2024)
Projected traffic5,000 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fourth ST over Spy Run Creek built?

It was built in 1921, making it 104 years old in 2025.

What condition is Fourth ST over Spy Run Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does Fourth ST over Spy Run Creek carry?

About 3,025 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Fourth ST over Spy Run Creek?

The structure is 65 ft (19.8 m) long with a longest span of 55 ft (16.7 m) and a deck 43 ft wide.

Who owns Fourth ST over Spy Run Creek?

It is owned by the County Highway Agency.