US Bridges

Armstrong Station over Spring Creek

PoorPosted for load

Lawrence County, Indiana · 00.09 S of SR 58 · Structure no. 4700077

Built
1915
110 years old, rebuilt 1992
Condition
Poor
inspected June 2024
Type
Truss - Thru
Steel
Length
92 ft
1 main span
Daily traffic
149
2016 count
Owner
County
County Highway Agency

About this bridge

Armstrong Station over Spring Creek is a steel truss - thru carrying Armstrong Station over Spring Creek in Lawrence County, Indiana. It was built in 1915 and reconstructed in 1992, so it is 110 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 3 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. Its operating status is: posted for load restriction.

It carries about 149 vehicles a day, roughly 4% of them trucks, projected to reach 211 by 2036. The structure is 92 ft (28.1 m) long and 15 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesArmstrong Station
CrossesSpring Creek
Location00.09 S of SR 58
RouteCounty Highway 0
StateIndiana
Coordinates38.90926, -86.65523
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating7.7 US tons
Inventory rating4.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans1
Design loadOther
Structure length92 ft (28.1 m)
Longest span87 ft (26.5 m)
Deck width15 ft (4.5 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic149 (2016)
Projected traffic211 by 2036
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Armstrong Station over Spring Creek built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1992.

What condition is Armstrong Station over Spring 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 June 2024.

How much traffic does Armstrong Station over Spring Creek carry?

About 149 vehicles per day (2016 count), of which roughly 4% are trucks.

How long is Armstrong Station over Spring Creek?

The structure is 92 ft (28.1 m) long with a longest span of 87 ft (26.5 m) and a deck 15 ft wide.

Who owns Armstrong Station over Spring Creek?

It is owned by the County Highway Agency.