US Bridges

Gilman ST over Messalonskee Stream

Fair

Kennebec County, Maine · 0.4 MI N JCT 104 · Structure no. 3121

Built
1933
92 years old, rebuilt 2018
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
134 ft
3 main spans
Daily traffic
4,400
2016 count
Owner
State
State Highway Agency

About this bridge

Gilman ST over Messalonskee Stream is a steel stringer/multi-beam or girder carrying Gilman ST over Messalonskee Stream in Kennebec County, Maine. It was built in 1933 and reconstructed in 2018, so it is 92 years old, older than the Maine average of 53.7 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 4,400 vehicles a day, roughly 5% of them trucks, projected to reach 5,280 by 2036. The structure is 134 ft (40.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesGilman ST
CrossesMessalonskee Stream
Location0.4 MI N JCT 104
RouteCounty Highway 0
CountyKennebec County
StateMaine
Coordinates44.55428, -69.64131
Functional classUrban 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length134 ft (40.9 m)
Longest span44 ft (13.5 m)
Deck width38 ft (11.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2016)
Projected traffic5,280 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Gilman ST over Messalonskee Stream built?

It was built in 1933, making it 92 years old in 2025. It was reconstructed in 2018.

What condition is Gilman ST over Messalonskee Stream 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 July 2024.

How much traffic does Gilman ST over Messalonskee Stream carry?

About 4,400 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Gilman ST over Messalonskee Stream?

The structure is 134 ft (40.9 m) long with a longest span of 44 ft (13.5 m) and a deck 38 ft wide.

Who owns Gilman ST over Messalonskee Stream?

It is owned by the State Highway Agency.