US Bridges

Pyrmont RD over Twin Creek

Fair

Preble County, Ohio · .20 E of SR 503 · Structure no. 6833861

Built
1904
121 years old, rebuilt 2020
Condition
Fair
inspected September 2024
Type
Truss - Thru
Steel
Length
180 ft
1 main span
Daily traffic
655
2017 count
Owner
County
County Highway Agency

About this bridge

Pyrmont RD over Twin Creek is a steel truss - thru carrying Pyrmont RD over Twin Creek in Preble County, Ohio. It was built in 1904 and reconstructed in 2020, so it is 121 years old, older than the Ohio average of 47.3 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 655 vehicles a day, roughly 7% of them trucks, projected to reach 750 by 2037. The structure is 180 ft (54.9 m) long and 16 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesPyrmont RD
CrossesTwin Creek
Location.20 E of SR 503
RouteCounty Highway T0453
CountyPreble County
StateOhio
Coordinates39.80256, -84.53052
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span172 ft (52.4 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic655 (2017)
Projected traffic750 by 2037
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pyrmont RD over Twin Creek built?

It was built in 1904, making it 121 years old in 2025. It was reconstructed in 2020.

What condition is Pyrmont RD over Twin Creek 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 September 2024.

How much traffic does Pyrmont RD over Twin Creek carry?

About 655 vehicles per day (2017 count), of which roughly 7% are trucks.

How long is Pyrmont RD over Twin Creek?

The structure is 180 ft (54.9 m) long with a longest span of 172 ft (52.4 m) and a deck 16 ft wide.

Who owns Pyrmont RD over Twin Creek?

It is owned by the County Highway Agency.