US Bridges

Mann RD over Swamp Creek

Good

Marion County, Indiana · 00.05 N of Ralston RD · Structure no. 4900414

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
39 ft
2 main spans
Daily traffic
6,394
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mann RD over Swamp Creek is a aluminum, wrought iron, or cast iron culvert carrying Mann RD over Swamp Creek in Marion County, Indiana. It was built in 1991, so it is 34 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,394 vehicles a day, roughly 5% of them trucks, projected to reach 9,501 by 2039. The structure is 39 ft (12 m) long and 29 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

CarriesMann RD
CrossesSwamp Creek
Location00.05 N of Ralston RD
RouteCity Street 0
StateIndiana
Coordinates39.64165, -86.25069
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating35.9 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans2
Design loadHS 20
Structure length39 ft (12 m)
Longest span16 ft (4.8 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,394 (2019)
Projected traffic9,501 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Mann RD over Swamp Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Mann RD over Swamp Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Mann RD over Swamp Creek carry?

About 6,394 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Mann RD over Swamp Creek?

The structure is 39 ft (12 m) long with a longest span of 16 ft (4.8 m) and a deck 29 ft wide.

Who owns Mann RD over Swamp Creek?

It is owned by the City or Municipal Highway Agency.